Academic literature on the topic 'Radiographic anatomy'
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Journal articles on the topic "Radiographic anatomy"
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Christman, RA, and P. Ly. "Radiographic anatomy of the first metatarsal." Journal of the American Podiatric Medical Association 80, no. 4 (1990): 177–203. http://dx.doi.org/10.7547/87507315-80-4-177.
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Normal radiographic anatomy of the first metatarsal bone is established through cadaver dissection, examination of bone specimens, and radiography. Extra-articular and distal articular anatomical landmarks are identified with wire markers. Dorsoplantar, lateral, lateral oblique, and medial oblique radiographs of 15 osteologic sites are presented, including the articular margins of the first metatarsal head, the borders of the three diaphyseal surfaces, the origins of the metatarsophalangeal collateral and metatarsosesamoid suspensory ligaments, and the insertions of the first cuneiform-metatarsal joint ligaments and the tibialis anterior and peroneus longus tendons. The correlation of gross anatomy and radiographs is described.
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Christman, Robert A. "Radiographic Anatomy of the Foot and Ankle—Part 1." Journal of the American Podiatric Medical Association 104, no. 4 (2014): 402–12. http://dx.doi.org/10.7547/0003-0538-104.4.402.
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The normal radiographic anatomy of the foot and ankle, aside from my previous work, has been addressed only superficially or sparingly in the medical literature. This project correlates the detailed radiographic anatomy of the entire adult foot and ankle (two-dimensional) to osteology (three-dimensional). Each bone's position was determined after meticulous examination and correlation to an articulated skeleton relative to the image receptor and direction of the x-ray beam, with correlation to the radiograph for confirmation. Images of each foot and distal leg bone (“front” and “back” perspectives) are presented alongside a corresponding radiographic image for comparison. The normal gross and radiographic anatomy is correlated and described for each radiographic positioning technique. Foundational knowledge is provided that future researchers can use as a baseline (“normal”) and that students and practitioners can use for comparison when interpreting radiographs and distinguishing abnormal findings. The findings from the original project, owing to its broad scope, have been divided into five parts: the lower leg (the focus of this paper), the greater tarsus, the lesser tarsus, the metatarsals, and the phalanges.
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Christman, Robert A. "Radiographic Anatomy of the Foot and Ankle—Part 2." Journal of the American Podiatric Medical Association 104, no. 5 (2014): 493–503. http://dx.doi.org/10.7547/0003-0538-104.5.493.
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Background Normal radiographic anatomy of the foot and ankle, aside from my previous work, has been addressed only superficially or sparingly in the medical literature. This project correlates detailed radiographic anatomy of the entire adult foot and ankle (two-dimensional) to osteology (three-dimensional). Methods Each bone's position was determined after meticulous examination and correlation to an articulated skeleton relative to the image receptor and direction of the x-ray beam, with correlation to the radiograph for confirmation. Results Images of each foot and distal leg bone (“front” and “back” perspectives) are presented alongside a corresponding radiographic image for comparison. The normal gross and radiographic anatomy is correlated and described for each radiographic positioning technique. Conclusions Foundational knowledge is provided that future researchers can use as a baseline (“normal”) and that students and practitioners can use for comparison when interpreting radiographs and distinguishing abnormal findings. The results of the original project, owing to its broad scope, have been divided into five parts: the lower leg, the greater tarsus (the focus of this article), the lesser tarsus, the metatarsals, and the phalanges.
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Christman, Robert A. "Radiographic Anatomy of the Foot and Ankle—Part 5." Journal of the American Podiatric Medical Association 105, no. 2 (2015): 141–49. http://dx.doi.org/10.7547/0003-0538-105.2.141.
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Background The normal radiographic anatomy of the foot and ankle, aside from my previous work, has been addressed only superficially or sparingly in the medical literature. This project correlates the detailed radiographic anatomy of the entire adult foot and ankle (two-dimensional) to osteology (three-dimensional). Methods Each bone's position was determined after meticulous examination and correlation to an articulated skeleton relative to the image receptor and direction of the x-ray beam, with correlation to the radiograph for confirmation. Results Images of each foot and distal leg bone (“front” and “back” perspectives) are presented alongside a corresponding radiographic image for comparison. The normal gross and radiographic anatomy is correlated and described for each radiographic positioning technique. Conclusions Foundational knowledge is provided that future researchers can use as a baseline (“normal”) and that students and practitioners can use for comparison when interpreting radiographs and distinguishing abnormal findings. The results of the original project, owing to its broad scope, have been divided into five parts: the lower leg, the greater tarsus, the lesser tarsus, the metatarsals, and the phalanges (the focus of this article).
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Christman, Robert A. "Radiographic Anatomy of the Foot and Ankle—Part 3." Journal of the American Podiatric Medical Association 104, no. 6 (2014): 633–43. http://dx.doi.org/10.7547/8750-7315-104.6.633.
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Background The normal radiographic anatomy of the foot and ankle, aside from my previous work, has been addressed only superficially or sparingly in the medical literature. This project correlates the detailed radiographic anatomy of the entire adult foot and ankle (two-dimensional) to osteology (three-dimensional). Methods Each bone's position was determined after meticulous examination and correlation to an articulated skeleton relative to the image receptor and direction of the x-ray beam, with correlation to the radiograph for confirmation. Results Images of each foot and distal leg bone ("front” and “back” perspectives) are presented alongside a corresponding radiographic image for comparison. The normal gross and radiographic anatomy is correlated and described for each radiographic positioning technique. Conclusions Foundational knowledge is provided that future researchers can use as a baseline (“normal”) and that students and practitioners can use for comparison when interpreting radiographs and distinguishing abnormal findings. The results of the original project, owing to its broad scope, have been divided into five parts: the lower leg, the greater tarsus, the lesser tarsus (the focus of this article), the metatarsals, and the phalanges.
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Christman, Robert A. "Radiographic Anatomy of the Foot and Ankle—Part 4." Journal of the American Podiatric Medical Association 105, no. 1 (2015): 51–60. http://dx.doi.org/10.7547/8750-7315-105.1.51.
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Background The normal radiographic anatomy of the foot and ankle, aside from my previous work, has been addressed only superficially or sparingly in the medical literature. This project correlates the detailed radiographic anatomy of the entire adult foot and ankle (two-dimensional) to osteology (three-dimensional). Methods Each bone's position was determined after meticulous examination and correlation to an articulated skeleton relative to the image receptor and direction of the x-ray beam, with correlation to the radiograph for confirmation. Results Images of each foot and distal leg bone (“front” and “back” perspectives) are presented alongside a corresponding radiographic image for comparison. The normal gross and radiographic anatomy is correlated and described for each radiographic positioning technique. Conclusions Foundational knowledge is provided that future researchers can use as a baseline (“normal”) and that students and practitioners can use for comparison when interpreting radiographs and distinguishing abnormal findings. The results of the original project, owing to its broad scope, have been divided into five parts: the lower leg, the greater tarsus, the lesser tarsus, the metatarsals (the focus of this article), and the phalanges.
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Lee, H., J. Kim, Y. Cho, M. Kim, N. Kim, and K. Lee. "Three-dimensional computed tomographic volume rendering imaging as a teaching tool in veterinary radiology instruction." Veterinární Medicína 55, No. 12 (2010): 603–9. http://dx.doi.org/10.17221/2950-vetmed.
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The educational value of three-dimensional computed tomography (3D CT) volume rendering imaging was compared to conventional plain radiographic instruction in a veterinary radiology class. Veterinary radiology is an important subject in veterinary medicine and has been well-recognized as a primary diagnostic method. Many junior and senior students have difficulty interpreting two dimensional radiographs that depict three-dimensional organs. A total of 158 junior veterinary students with knowledge of anatomy, pathology, physiology, and other basic subjects were divided into two groups; Group 1 (n = 45) received conventional radiographic instruction using normal and representative abnormal canine thoracic and abdominal radiographs followed by repetition of the same one week later, while Group 2 (n = 113) received plain radiograph instruction as in Group 1 followed by volume-rendered 3D CT images from the same canine patient one week later. The evaluations were performed at the end of each instruction. In Group 1, the majority did not understand the radiographic signs and no significant improvement was observed. In Group 2, 13% and 20% of the students learned only from radiographs, and understood the thoracic and abdominal radiographic alterations, respectively. After studying the 3D CT images, more than 94% of the students deduced the reasons for the radiographic alterations on the radiographs (P < 0.001). These results strongly suggest that 3D CT imaging is an effective tool for teaching radiographic anatomy to veterinary medical students.
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Magid, Donna, Daniel W. Hudson, and David S. Feigin. "Chest Radiographic Anatomy Retention." Academic Radiology 16, no. 11 (2009): 1443–47. http://dx.doi.org/10.1016/j.acra.2009.07.012.
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Ganjaei, Kimia G., Zachary M. Soler, Elliott D. Mappus, et al. "Novel Radiographic Assessment of the Cribriform Plate." American Journal of Rhinology & Allergy 32, no. 3 (2018): 175–80. http://dx.doi.org/10.1177/1945892418768159.
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Background The cribriform plate (CP) is a common site of spontaneous cerebrospinal fluid (SCSF) leaks. Radiographic assessment of the anterior and lateral skull base has shown thinner bone in patients with SCSFs; however, prior assessment of the CP has required postmortem cadaver dissection. Objective To develop novel radiographic techniques to assess the anatomy of the CP. Methods Computed tomography (CT) scans were performed on cadaveric specimens. Bone density and anatomy of a predefined volume of interest of the posterior CP were assessed by two independent reviewers. CT assessment of olfactory foramina was also performed and validated using anatomic dissection of cadaver specimens. Results Interclass correlation coefficients (ICCs) for measuring the same volume of each CP was 0.96, confirming reproducible anatomic localization. Cadaver CPs had a mean Hounsfield units of 263, indicating a mix of bone and soft tissue, and ICC was 0.98, confirming reproducible radiographic measurements. Optimal CT estimates of bone composition of CPs averaged 85% (range 76% to 96%) compared to actual anatomic dissection which averaged 84% bone (range 74% to 91%, r = .690, P = .026). Conclusion Our novel, noninvasive CT method for assessing CP anatomy is reproducible and correlates with anatomic dissection assessing bone composition. The clinical implications of anatomic changes in the CP are an area for further study.
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Meixner, Elizabeth L. "Radiographic Anatomy and Positioning: An Integrated Approach; Applications Manual for Radiographic Anatomy and Positioning; Competency Manual for Radiographic Anatomy and Positioning; Pocket Manual for Radiographic Anatomy and Positioning." Radiology 208, no. 2 (1998): 490. http://dx.doi.org/10.1148/radiology.208.2.490.
Full textDissertations / Theses on the topic "Radiographic anatomy"
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Ladeira, Daniela Brait Silva. "Distorção de imagens em radiografias panoramicas com relação a distancia intergoniaca." [s.n.], 2009. http://repositorio.unicamp.br/jspui/handle/REPOSIP/290139.
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Orientador: Solange Maria de Almeida<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Odontologia de Piracicaba<br>Made available in DSpace on 2018-08-12T22:00:11Z (GMT). No. of bitstreams: 1
Ladeira_DanielaBraitSilva_M.pdf: 1017119 bytes, checksum: 322eb3926821425fc8da5596828faa73 (MD5)
Previous issue date: 2009<br>Resumo: A realização de medidas precisas em radiografias panorâmicas é duvidosa, devido à distorção por ampliação de imagens. Por ser um método tomográfico, somente a porção do objeto localizada na camada de imagem do aparelho estará livre de distorção. O objetivo nesse trabalho foi determinar a camada de imagem do aparelho panorâmico Orthopantomograph OP 100 e avaliar a relação entre distâncias intergoníacas e medidas lineares em radiografias panorâmicas. Para a determinação da camada de imagem foi construído um phantom constituído por uma placa acrílica de 14cm², com sua superfície contendo perfurações a cada 0,5cm. O phantom foi posicionado no local do apoio de mento do aparelho panorâmico, com sua superfície paralela ao plano horizontal. Esferas metálicas de 0,315cm foram inseridas nas perfurações, e executadas radiografias panorâmicas. Cada coluna de cada quadrante foi individualmente preenchida pelas esferas para a execução das radiografias, em três planos horizontais diferentes: alturas orbital, oclusal e mentual. As imagens radiográficas obtidas foram analisadas e a camada de imagem localizada. Mostrou-se curva no plano horizontal, e mais estreita na região anterior; no plano vertical, apresentou discreta assimetria da cavidadeorbitária em direção ao mento, e entre os lados direito e esquerdo. Na etapa seguinte, mandíbulas maceradas foram separadas em três grupos de dez mandíbulas cada, de acordo com as distâncias intergoníacas: G1(8,2cm), G2(9,0cm) e G3(9,6cm). As mandíbulas receberam em sua superfície, triângulos retângulos isósceles confeccionados com esferas metálicas de 0,198cm, fixados nas regiões de incisivos, caninos/pré-molares, molares, ângulo e ramo da mandíbula. As mandíbulas foram individualmente radiografadas sobre o phantom, nos limites da camada de imagem, primeiramente com os triângulos fixados na superfície externa, e em uma segunda etapa, na superfície interna. As imagens radiográficas dos triângulos foram medidas, e obtiveram-se duas medidas para cada triângulo, uma vertical e outra horizontal, e calculadas as medianas entre as medidas internas e externas. Após análise estatística utilizando-se o teste de Tukey (a=0,05), observou-se que não houve diferenças estatisticamente significativas nas medidas verticais e horizontais entre os grupos G1, G2 e G3. Concluiu-se não haver relação entre a distância intergoníaca e medidas lineares horizontais e verticais. Porém, as medidas variaram entre as diferentes regiões de um mesmo grupo. Essa variação foi maior para as medidas horizontais em relação às verticais.<br>Abstract: Precise measures in panoramic radiographs are questionable due to the image distortion. As a tomographic method, only the structures located on the image layer is free of distortion. The aim in this work was to determine the image layer of the panoramic Orthopantomograph OP 100 unit and to evaluate the relationship between intergoniac distances and linear measures in panoramic radiographies. To determine the image layer it was idealized a phantom produced by a 14cm² acrylic plate with holes every 0,5cm. The phantom was placed on the panoramic device mental support, with the surface parallel to the horizontal plan. 0,315cm metal spheres were inserted in the holes and then, panoramic radiographies were taken. A column of each quadrant was filled by the spheres to radiographic exposure in three horizontal plains: orbital, occlusal and symphysis levels. The radiographic images were examined and the image layer was located. It showed curve in the horizontal plane with narrowing in the anterior region; in the vertical plan, it showed slight asymmetry of the orbital cavity toward the symphysis, and between the right and left sides. After that, dry mandibles were separated in three different groups with ten mandibles per group according the intergoniac distances: G1(8,2cm), G2(9,0cm) e G3(9,6cm). Isosceles rectangular triangles confectioned with 0,198cm metal spheres were set in the regions of incisors, canines/ bicuspid, molars, angle and mandibular ramus. Each mandible was radiographed separately on the phantom in the image layer limits. At first the triangles were set on the external surface and, in a second step, they were set on the internal surface. After all the radiographic images taken, the triangles were measured resulting in two measures for each triangle, one vertical and another one horizontal. The median values between the internal and external measures were calculated and the data were submitted to Tukey Test (a=0,05). There were no statistically significant differences in vertical and horizontal measures among the groups G1, G2 and G3. Thus, it was possible to conclude that there is not relationship between the intergoniac distance and horizontal and vertical linear measures. However, the measures ranged between the different regions of one same group and this variation was greater for horizontal measures in relation to vertical.<br>Mestrado<br>Radiologia Odontologica<br>Mestre em Radiologia Odontológica
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Adam, Ryan J. "Radiographic assessment of lung anatomy, physiology, and disease in a porcine model of cystic fibrosis and people with cystic fibrosis." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5692.
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Despite affecting many organ systems, the leading cause of morbidity and mortality in the cystic fibrosis (CF) population is lung disease. For the current studies we investigated elements of CF lung disease in a porcine model of CF and in people with CF. Our primary analysis tool was chest computed tomography (CT).
To investigate early CF lung disease we examined three week old CF and non-CF pigs. We found three week old CF pigs to have large, irregular tracheal smooth muscle bundles, airways of reduced size, airways of irregular shape, and airways of abnormal distensibility.
Three week old CF pig lung parenchyma was more heterogenous in density than three week non-CF pigs, especially in the right cephalad lung. The degree of lung tissue heterogeneity in CF pigs correlated with the degree of lung infection. Three week old CF pigs also had significantly more air trapping upon exhalation, evidence of airflow obstruction, than non-CF pigs. The degree of air trapping correlated with the degree of mucus accumulation in the airways. These data show that CF pigs spontaneously develop hallmark features of CF lung disease within weeks of birth, and that abnormal airway growth and development in CF may contribute to lung disease. This study helped set the foundation for future comparative studies involving CF therapeutics, for example, antibiotics and mucolytics.
In adults with CF we performed a before drug, after drug study. The drug was ivacaftor, and it restores the basic underlying defect in a subset of people with CF: impaired function of a particular anion channel. We hypothesized that abnormal airway smooth muscle behavior in people with CF, known as “CF asthma,” is, in part, a primary pathogenic mechanism of CF lung disease. We tested our hypothesis by assaying smooth muscle tone before and after administration of ivacaftor. We limited the time duration to two days. We reasoned two days was long enough for ivacaftor to become effective, but not long enough to reverse long standing lung infection and inflammation which could affect smooth muscle function independently. The implication being, that observed changes would be directly due to restoration of the CF defect. We found evidence suggesting relaxation of airway and vascular smooth muscle tone. And, the change in airway smooth muscle tone correlated with the change in vascular smooth muscle tone. These data suggest that impaired smooth muscle function is a primary element of CF lung disease.
Many of the people in our two day ivacaftor study returned for follow up after one year of ivacaftor therapy. We hypothesized that radiographic features of lung disease would improve following one year of ivacaftor therapy. We observed no change in lung volume upon inspiration, but a reduction in expiratory lung volume, approximately half of which occurred within two days. Our airway measurements were confounded by errors in scan reconstruction, however, other published studies report airway wall thinning over long term ivacaftor administration. Taken together, these studies of pigs with CF and people with CF, help us understand this disease.
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Labib, Sameh A. "The determination of the mechanical axis of the knee on a short X-ray : a new radiographic technique." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56999.
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Most authors recommend drawing the mechanical axis on a three-foot (90 cm) full leg length x-ray for accurate assessment of knee alignment. Three foot x-rays are difficult to perform and reproduce and involve undue radiation to the gonads. The purpose of this project is to propose a new radiographic technique whereby the mechanical axis of the knee can be assessed on a short A/P x-ray of the entire tibia.<br>Methodology. 21 normal adults and 25 patients with malaligned knees were investigated in the following manner--the patient was x-rayed in standing position with the legs positioned exactly parallel to one another and vertical to the floor. Under these circumstances, the ankles were apart by a distance (distance F$ sb1$) equal to the distance between the femoral heads (distance F). The mechanical axes were hence parallel to one another and parallel to the long axis of the x-ray cassette and vertical to the floor. Two separate x-rays were taken, a three-foot (90cm) long x-ray and a short x- ray of the entire tibia. The mechanical axis was determined on the 90 cm, three-foot long x-ray.<br>A vertical line drawn on the short x-ray starting from the centre of the ankle and extended upwards and parallel to the long axis of the x-ray cassette could accurately identify the mechanical axis of the knee using either technique. (Fig. 1)<br>The technique has been called the "Parallel Mechanical Axes X-ray Technique". It has been validated and it will be demonstrated that such an x-ray technique: (1) Standardizes positioning of the lower extremities. (2) Is a precise, easily controllable method to assess knee alignment. (3) A short x-ray of the entire tibia is sufficient, thus reducing the cost of x-rays by 50%. (4) Obviates the need to visualize the pelvis thus minimizing net radiation exposure. (5) May be used in clinics and smaller hospitals, since it requires simple and inexpensive x-ray facilities.
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Messer, Diana Lynn. "Variables Influencing Time Since Injury of Pediatric Healing Fractures; Radiographic Assessment and Implications for Child Physical Abuse." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1574408203228578.
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Ávila, Maria Amelia Gonçalves de. "Software anatomia em radiografias panorâmicas: avaliação do método de ensino-aprendizado em Odontologia." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-15032006-170856/.
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Objetivos: Desenvolver um programa de computador sobre anatomia em radiografias panorâmicas; analisar a opinião de peritos a respeito do software como método de ensino-aprendizado; analisar a aceitação do método proposto, pelos alunos do 2 0 , 3 0 e 4 0 anos de graduação da Faculdade de Odontologia da Universidade Federal de Goiás. Métodos: O software elaborado resultou em um programa tutorial multimídia interativo, estruturado em módulos, compostos dos seguintes temas: formação da imagem na técnica panorâmica, seqüência para interpretação radiográfica, anatomia radiográfica em panorâmicas, jogos e avaliação. Após a conclusão do programa, aplicou-se um questionário a 56 entrevistados (10 professores Doutores em Radiologia, denominados peritos, e 46 alunos de graduação) com a finalidade de avaliar o software como método de ensino-aprendizado. Resultados: As respostas foram analisadas por meio de análise estatística descritiva e verificou-se que: 100% dos avaliadores não fariam qualquer modificação no layout, navegação e conteúdo do módulo de anatomia radiográfica, objetivo central do software; 98% dos alunos e 60% dos peritos aprovaram as imagens desse mesmo módulo. 100% dos entrevistados gostariam de ter mais acesso a softwares educacionais e afirmaram que o programa apresentou-se explicativo e de fácil entendimento. 100% dos peritos declararam que o programa atingiu todos os objetivos propostos e se constitui de um método de ensino-aprendizado válido. Conclusão: O programa foi amplamente aceito pela população 13 pesquisada, tornado sua aplicação factível e pertinente como método de ensino-aprendizado<br>Objectives: To develop a software about panoramic radiography; to analyze professors opinions about the software as a teacher and learning method; to analyze graduation students - 2 0 , 3 0 and 4 0 levels / Dentistry Scholl of Goiás / Brazil - acceptation of the method. Methods: The software was developed, resulting in a multimedia tutorial containing pages about panoramic technique, interpretation sequences, panoramic radiographic anatomy, games and tests. After the completing said program, a questionnaire was applied to ten professors PhDs in Radiology, denominated experts, and 46 dental graduating students, with the purpose to analyze their opinions about the program as a teaching and learning method. Results: The answers was analyzed descriptively, and it could be observed that, 100% of experts wouldnt make any alteration on the layout, navigation and texts in the most important part of the program, that is panoramic radiography anatomy; 98% of the students and 60% of the experts approved the images of the refereed modulus. 100% of the interviewed would like to have more educational software, and declared that the program was clear and easily understanding. 100% of the experts affirmed that the program reached all objectives proposed and can be considered as a valid teaching and learning method Conclusion: The program interested and was great accepted by the interviewed population, becoming completely feasible and pertinent the application of the said instrument as a teaching and learning method
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韋文華 and Man-wah Andrew Wai. "Radiological anatomy of the Chinese orbit." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B41883111.
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Mäkelä, Timo. "Mise en correspondance en imagerie cardiaque multimodale : vers un modèle anatomo-fonctionnel individualisé du coeur." Lyon, INSA, 2004. http://theses.insa-lyon.fr/publication/2004ISAL0035/these.pdf.
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L'objectif de cette thèse était de développer des méthodes destinées à la mise en correspondance d'images (recalage) cardiaques multimodales. Une méthode de recalage rigide a été mise au point pour recaler des Images par Résonance Magnétique (IRM) et de Tomographie d'Emission de Positions (TEP). Elle est basée sur le recalage de structures thoraciques préalablement segmentées. De même, une méthode de recalage élastique a été développée et appliquée au recalage d'images cardiaques intra-patient par RM et TEP. Elle repose sur une combinaison du critère d'information mutuelle et d'informations de gradient pour guider la déformation régularisée d'une image vers une image cible. Enfin, une approche pour la création de cartographies individualisées anatomiques et fonctionnelles en trois dimensions (3-D) du cœur incluant des informations structurelles issues de l'IRM et des informations fonctionnelles provenant de la TEP et de la Magnétocardiographie a également été mise au point<br>The objective of this thesis was to develop methods for multimodal cardiac image registration and fusion. A rigid registration method has been developed to register Magnetic Resonance (MR) with Positron Emission Tomography (PET) images of the thorax and heart. It is based on the matching of thoracic structures previously segmented from the images. This method has evaluated on a reference simulated image data set and clinical data. An elastic registration method is also proposed and applied to the registration of intra-patient cardiac MR and PET images. It combines the mutual information criteria with a gradient based measure to control the deformation of the floating image to the target image. Finally, an approach for the building of 3D individualized anatomical and functional maps of the heart is introduced from the joint registration of structural information from MRI and functional information from PET and magnetocardiography
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Melero, Jurado Adrián. "Anatomical description of the coelomic cavity organs using radiography, ultrasonography and computed tomography in healthy veiled chameleons (Chamaeleo calyptratus) and panther chameleons (Furcifer pardalis)|Descripción anatómica de los órganos de la cavidad celómica mediante radiografía, ecografía y tomografía computerizada en camaleones velados (Chamaeleo calyptratus) y camaleones pantera (Furcifer pardalis) sanos." Doctoral thesis, Universitat Autònoma de Barcelona, 2020. http://hdl.handle.net/10803/670673.
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El camaleó vetllat (Chamaeleo calyptratus) i el camaleó pantera (Furcifer pardalis) són dues de les espècies de camaleó més populars al món, i en conseqüència, dues de les que més freqüentment s’atenen a les consultes veterinàries.
Les diferents tècniques de diagnòstic per imatge solen incloure’s de forma rutinària als protocols diagnòstics en medicina herpetològica com són la radiografia, la ecografia, la tomografia computeritzada y la ressonància magnètica. Tot i així, els estudis publicats sobre descripció anatòmica mitjançant tècniques d’imatge són escassos, i la interpretació d’aquestes últimes es basa en l’experiència pròpia del clínic o bé per extrapolació d’altres espècies prèviament estudiades.
Per aquest motiu, els objectius d’aquest estudi anatòmic prospectiu van ser desenvolupar protocols de diagnòstic per imatge en aquestes espècies i descriure l’anatomia dels òrgans de la cavitat celòmica en animals sans, mitjançant l’ús de la radiografia, l’ecografia i la tomografia computeritzada.
Es van incloure disset camaleons vetllats (7 mascles i 10 femelles) i quinze camaleons pantera (13 mascles i 2 femelles) sans en base als resultats de l’examen físic general i de l’estudi corològic. L’estudi es va realitzar en camaleons sedats mitjançant l’administració d’alfaxalona (Alfaxan®, Crawley, UK) 4-6 mg/kg IV a la vena ventral de la cua. Un cop sedats, es va realitzar un estudi radiogràfic amb dues projeccions (lateral dreta i dorsoventral) amb xassís de mamografia. Seguidament, es va realitzar un estudi ecogràfic complet de la cavitat celòmica amb l’ús de sonda lineal de 15 a 18-MHz en decúbit lateral dret. Finalment, es va realitzar una tomografia computeritzada helicoidal amb un escàner de 16 talls en decúbit esternal. Es va realitzar l’estudi postmortem d’un exemplar de cada espècie per tal d’aclarir, il·lustrar i avaluar les troballes de les proves d’imatge.
Els resultats obtinguts suggereixen que les diferents tècniques d’imatge estudiades permeten la visualització del fetge (incloent la vena cava caudal i las venes hepàtiques), la vesícula biliar, l’estómac, els intestins, les gònades, els cossos grassos i els ronyons en camaleons vetllats i pantera. La bufeta de la orina només es va identificar mitjançant ecografia i tomografia. La melsa, el pàncrees i les glàndules adrenals van ser identificades als estudis postmortem però no van poder visualitzar-se mitjançant cap tècnica d’imatge.
En conclusió, aquest estudi proporciona una guia de les característiques anatòmiques normals dels òrgans celòmics mitjançant tècniques de diagnòstic per imatge en camaleons vetllats i camaleons pantera. D’aquesta manera, les troballes poden ser utilitzades com a referència durant els exàmens de pacients malalts o per a futurs estudis d’investigació.<br>El camaleón velado (Chamaeleo calyptratus) y el camaleón pantera (Furcifer pardalis) son dos de las especies de camaleón más populares en el mundo, y en consecuencia, dos de las que más frecuentemente se atienden en la consulta veterinaria.
Las diferentes técnicas de diagnóstico por imagen suelen incluirse de forma rutinaria en los protocolos diagnósticos en medicina herpetológica, entre ellas la radiografía, la ecografía, la tomografía computerizada y la resonancia magnética. Sin embargo, los estudios publicados sobre descripción anatómica mediante técnicas de imagen son escasos, y la interpretación de estas últimas se basa en la experiencia propia del clínico o bien por extrapolación de otras especies ya estudiadas.
Por este motivo, los objetivos de este estudio anatómico prospectivo fueron desarrollar protocolos de diagnóstico por imagen en estas especies y describir la anatomía de los órganos de la cavidad celómica en animales sanos, mediante el uso de radiografía, ecografía y tomografía computerizada.
Se incluyeron diecisiete camaleones velados (7 machos y 10 hembras) y quince camaleones pantera (13 machos y 2 hembras) sanos en base a los resultados del examen físico general y del estudio coprológico. El estudio se realizó en camaleones sedados tras la administración de alfaxalona (Alfaxan®, Crawley, UK) 4-6 mg/kg IV en la vena ventral de la cola. Una vez sedados, se realizó un estudio radiográfico con dos proyecciones (lateral derecha y dorsoventral) con chasis de mamografía. Seguidamente, se realizó un estudio ecográfico completo de la cavidad celómica mediante sonda lineal de 15 a 18-MHz en decúbito lateral derecho. Finalmente, se realizó una tomografía computerizada helicoidal con un scanner de 16 cortes en decúbito esternal. Se realizó el estudio post mortem de un ejemplar de cada especie por tal de esclarecer, ilustrar y evaluar los hallazgos de imagen.
Los resultados obtenidos sugieren que las diferentes técnicas de imagen estudiadas permiten la visualización del hígado (incluyendo la vena cava caudal y las venas hepáticas), la vesícula biliar, el estómago, los intestinos, las gónadas, los cuerpos grasos y los riñones en camaleones velados y pantera. La vejiga de la orina solo pudo identificarse mediante ecografía y tomografía. El bazo, el páncreas y las glándulas adrenales fueron identificados en los estudios post mortem pero no pudieron ser visualizados mediante ninguna de las técnicas de imagen.
En conclusión, este estudio proporciona una guía de las características anatómicas normales de los órganos celómicos mediante técnicas de diagnóstico por imagen en camaleones velados y camaleones pantera. De esta forma, los hallazgos pueden ser utilizados como referencia para exámenes de pacientes enfermos o para futuros estudios de investigación.<br>Veiled chameleon (Chamaeleo calyptratus) and Panther chameleon (Furcifer pardalis) are the most popular chameleons over the world, and consequently, two of the most frequently species attended in veterinary practice.
The most commonly used imaging techniques in diagnostic protocols in herpetology include radiography, ultrasonography (US), computed tomography (CT) and magnetic resonance imaging (MRI). However, few studies about imaging description in reptiles have been published.
The objectives of this prospective anatomic study were to develop imaging techniques for these species and to describe the normal anatomy of the coelomic organs using radiography, US and CT scan.
Seventeen healthy veiled chameleons (7 males and 10 females) and fifteen healthy panther chameleons (13 males and 2 females) were included in the study. Animals were considered to be healthy on the basis of the results of a complete physical examination and coprology testing.
The imaging study was performed in sedated chameleons after the administration of alfaxalone (Alfaxan®, Crawley, UK) 4-6 mg/kg IV in the ventral vein of the tail. A right lateral and dorsoventral radiographic views were performed with a mammography cassette plate in all animals. Then, an ultrasound was performed in right lateral recumbency using a linear 15 to 18-MHz transducer. Finally, a CT examination was performed with a 16-slice helical CT scanner in sternal recumbency. Post-mortem study of one chameleon of each species were used to clarify and illustrate coelomic anatomy and to assess imaging findings.
The results of the current study suggest that the different imaging techniques (radiography, ultrasonography and computed tomography) allow the visualization of the liver (including caudal vena cava and hepatic veins), gallbladder, stomach, intestines, gonads, fat bodies and kidneys in healthy veiled and panther chameleons. The urinary bladder was identified using US and CT examination. The spleen, pancreas and adrenal glands were identified in post-mortem studies, but could not be visualized with any imaging technique.
In conclusion, this study provides a guide of the normal imaging anatomic features of the coelomic organs in veiled chameleons and panther chameleons. Findings can be used as a reference for future research studies or for examinations of clinically ill patients.
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Stefanescu, Radu-Constantin. "Parallel nonlinear registration of medical images with a priori information on anatomy and pathology." Nice, 2005. http://www.theses.fr/2005NICE4090.
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Le but de cette thèse est de proposer un algorithme de recalage non-rigide adapté au recalage atlas / sujet dans un environnement clinique. Les applications médicales sont la planification pré-opératoire pour la radiothérapie conforme des tumeurs cérébrales, et pour la stimulation cérébrale profonde continue des patients atteints de la maladie de Parkinson. Dans ces applications, le recalage non-rigide est utilisé pour déformer les segmentations de l’atlas (effectuées par un expert) dans la géométrie du patient. L’algorithme proposé utilise un champ de déplacement dense pour modeler finement la transformation, et un critère de similarité basé sur l’intensité pour estimer les appariements entre les deux images. L’inversibilité de la transformation estimée est garantie grâce à une nouvelle méthode de rééchantillonage rapide. La régularisation est implémentée à l’aide d’un modèle visco-élastique : une régularisation non-stationnaire et éventuellement anisotrope du champ de déplacement modélise la variabilité spatiale de la déformabilité des différentes structures ; une régularisation non-stationnaire de la dérivée temporelle du critère de similarité permet de pondérer l’information fournie par les différents voxels, et d’éviter les possibles erreurs causées par les pathologies dans l’image du patient. L’utilisation d’un schéma numérique semi-implicite permet des temps de calcul courts. Nous proposons aussi une implémentation parallèle sur une ferme d’ordinateurs personnels qui permet de réduire le temps de calcul à quelques minutes. Finalement, nous utilisons des méthodes de type « grille de calcul » pour connecter l’ordinateur parallèle à un système de visualisation<br>The purpose of this thesis is to provide a nonrigid registration algorithm adapted to atls to subject registration in a clinical environment. The clinical applications addressed are the pre-operative planning of conformal brain radiotherapy and of the deep brain stimulation of Parkinsonian patients. In these applications, the nonrigid registration is used to deform expert segmentations of an anatomical atlas image into a patient’s geometry. The proposed algorithm uses a dense displacement field to finally model the transformation, and an intensity-based similarity criterion to estimate the matches between the two images. The invertibility of the recovered transformation is guaranteed thanks to a new and fast regridding method. The regularization is implemented in a two-step viscoelastic-like model. A non-stationary and possibly anisotropic regularization of the displacement field models the space-varying deformability of different structures. A non-stationary regularization of the temporal derivative of the similarity criterion allows to weight informative vs. Non-informative voxels, and to avoid errors due to pathologies in the patient image. The use of a semi-implicit numerical scheme enables fair computation times. We also propose a parallel implementation on a cluster of personal computers that further reduces the execution time to only a few minutes. Finally, we use grid computing methods to tightly couple the quite heavy parallel architecture to a lightweight visualization system
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WESTEEL, DECOULARE DELAFONTAINE ANNE. "La radiographie de profil du thorax chez l'adulte : radioanatomie, applications pathologiques." Amiens, 1988. http://www.theses.fr/1988AMIEM076.
Full textBooks on the topic "Radiographic anatomy"
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Emil, Reif, and Stark Paul 1944-, eds. Pocket atlas of radiographic anatomy. G. Thieme Verlag, 1993.
Find full textBook chapters on the topic "Radiographic anatomy"
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Kocova, Eva. "Radiographic Anatomy." In HRCT in Interstitial Lung Disease. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16315-0_4.
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Dickinson, Karen J., and Shanda H. Blackmon. "Radiographic Anatomy." In Atlas of Esophageal Disease and Intervention. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-3088-3_4.
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Scansen, Brian A. "Radiographic Cardiac Anatomy." In Veterinary Image-Guided Interventions. John Wiley & Sons, Ltd, 2015. http://dx.doi.org/10.1002/9781118910924.ch51.
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Niemiec, Brook A. "Normal Radiographic Anatomy." In Practical Veterinary Dental Radiography. CRC Press, 2017. http://dx.doi.org/10.1201/b20288-9.
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Fernandez, Diego L., and Jesse B. Jupiter. "Functional and Radiographic Anatomy." In Fractures of the Distal Radius. Springer US, 1996. http://dx.doi.org/10.1007/978-1-4684-0478-4_3.
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Pawha, Puneet, Nancy Jiang, Katya Shpilberg, Michael Luttrull, and Satish Govindaraj. "Gross and Radiographic Anatomy." In Anesthesiology and Otolaryngology. Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-4184-7_2.
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Fernandez, Diego L., and Jesse B. Jupiter. "Functional and Radiographic Anatomy." In Fractures of the Distal Radius. Springer New York, 2002. http://dx.doi.org/10.1007/978-1-4613-0033-5_3.
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Lloyd, Glyn A. S. "Basic Radiographic Technique and Normal Anatomy." In Diagnostic Imaging of the Nose and Paranasal Sinuses. Springer London, 1988. http://dx.doi.org/10.1007/978-1-4471-1629-5_1.
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Folio, Les R. "Normal Chest X-Ray, Terminology and Radiographic Anatomy." In Chest Imaging. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4614-1317-2_3.
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Bahk, Yong Whee. "Normal Skeletal Anatomy on Pinhole Scintigraphy." In Combined Scintigraphic and Radiographic Diagnosis of Bone and Joint Diseases. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-662-06294-4_2.
Full textConference papers on the topic "Radiographic anatomy"
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Barone, Sandro, Alessandro Paoli, Armando V. Razionale, and Roberto Savignano. "3D Reconstruction of Individual Tooth Shapes by Integrating Dental CAD Templates and Patient-Specific Anatomy." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-34362.
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The accurate reconstruction of a human digital dental model represents a wide research area within the orthodontic field due to its importance for the customization of patient treatments. Usually, 3-D dental root geometries are obtained by segmenting tomographic data. However, concerns about radiation doses may be raised since tomographic scans produce a greater X-ray dose than conventional 2-D panoramic radiographs (PAN). The present work is aimed at investigating the possibility to retrieve 3-D shape of individual teeth by exposing the patient to the minimum radiation dose. The proposed methodology is based on adapting general CAD templates over patient-specific dental anatomy, which is reconstructed by integrating the optical digitization of dental plaster models with a PAN image. The radiographic capturing process is simulated through the Discrete Radon Transform (DRT) and performed onto the patient crowns geometry obtained by segmenting the digital plaster model. A synthetic PAN image is then reconstructed and used to integrate the radiographic data within the digitized plaster model, thus allowing to retrieve roots information which guide the CAD templates adapting over the patient anatomy.
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Wang, Xiaohui, and Hui Luo. "Automatic and exam-type independent algorithm for the segmentation and extraction of foreground, background, and anatomy regions in digital radiographic images." In Medical Imaging 2004, edited by J. Michael Fitzpatrick and Milan Sonka. SPIE, 2004. http://dx.doi.org/10.1117/12.536805.
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Pfeiffer, Ferris M. "Improving Pre-Operative Evaluation and Surgical Planning of Spine Deformity Surgeries Using 3D Printing." In ASME 2009 4th Frontiers in Biomedical Devices Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/biomed2009-83014.
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Visualization of spinal pathologies such as scoliosis is imperative to proper surgical treatment. Current visualization techniques use 2D representations of the anatomy in the form of radiographs, CT, or MRI. The ability to view patient anatomy in three dimensions prior to surgical intervention allows for a more thorough evaluation and planning of the surgical requirements. Manufacturing methods such as three dimensional printing can be employed to rapidly generate a physical 3D representation of patient anatomy which can be used for visualization and/or surgical planning.
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Antila, Kari, Mikko Lilja, Martti Kalke, and Jyrki Lotjonen. "Automatic extraction of mandibular bone geometry for anatomy-based synthetization of radiographs." In 2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2008. http://dx.doi.org/10.1109/iembs.2008.4649197.
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Horn, Florian, Christian Hauke, Sebastian Lachner, et al. "High-energy x-ray grating-based phase-contrast radiography of human anatomy." In SPIE Medical Imaging, edited by Despina Kontos, Thomas G. Flohr, and Joseph Y. Lo. SPIE, 2016. http://dx.doi.org/10.1117/12.2216893.
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Gaspar, M. C., A. Mateus, C. Pereira, and F. V. Antunes. "Biomechanical Modeling of Hip Joint Prosthesis." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-64276.
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In this work a Bombelli cementless isoelastic RM total hip prosthesis was considered. It was implanted over a course of 14 years on the patient and studied subsequently to its chirurgical replacement. Computed Tomography, radiographies and 3-D laser scanning were used to assess the prosthesis geometry, while the original femur anatomy was modeled based on 2-D radiographies taken at different stages of the in-vivo implant of the prosthesis. A finite element model was developed, based on the generated 3-D geometrical model, considering a linear elastic behavior and typical loading conditions. This analysis allowed determining stress and strain fields throughout bone-prosthesis contact surface and critical areas in terms of micromovements. The developed procedure, consisting of 3-D scanning, generation of geometrical 3-D models and finite element analysis, results in a powerful tool to follow-up and predict failure mechanisms in hip joint prosthesis.
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Marmor, Meir, Erik N. Hansen, Hyun Kyu Han, Jenni M. Buckley, and Amir Matityahu. "Assessment of Radiographic Parameters for Adequate Reduction Following Syndesmotic Injury Causing Fibular Malrotation." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19082.
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Rotational ankle injuries are one of the most common musculoskeletal problems treated by orthopaedic surgeons. The distal tibio-fibular syndesmosis may be disrupted during injury resulting in ankle instability. The goal of surgery is to restore anatomic relation of tibia, fibula, and talus. Any malreduction including that of the syndesmosis may result in poor clinical outcomes [1]. While currently accepted radiographic criteria can adequately detect tibio-fibular diasthesis or translation malreductions, it is not yet clear if the currently these criteria are equally suited for detection of rotational malreductions of the tibio-fibular syndesmosis [2]. The goal of this study is to quantify the sensitivity of fluoroscopic measurements of tibio-fibular overlap (TFO) and tibio-fibular clear space (TCS) to rotational malreductions of the syndesmosis. Standard x-ray imaging will be compared with a 3D fluoroscan which will simulate postoperative CT [3].
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Giger, Maryellen L., Kunio Doi, Heber MacMahon, and Fang-Fang Yin. "Image-Processing Techniques Used In The Computer-Aided Detection Of Radiographic Lesions In Anatomic Background." In Medical Imaging II, edited by Roger H. Schneider and Samuel J. Dwyer III. SPIE, 1988. http://dx.doi.org/10.1117/12.968691.
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Chen, Xin, Martin R. Varley, Lik-Kwan Shark, Glyn S. Shentall, and Mike C. Kirby. "Automatic 3D-2D image registration using partial digitally reconstructed radiographs along projected anatomic contours." In International Conference on Medical Information Visualisation - BioMedical Visualisation (MediVis 2007). IEEE, 2007. http://dx.doi.org/10.1109/medivis.2007.7.
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Tsujii, Osamu, Matthew T. Freedman, and Seong K. Mun. "Automated segmentation of anatomic regions in chest radiographs using an adaptive-sized hybrid neural network." In Medical Imaging 1997, edited by Kenneth M. Hanson. SPIE, 1997. http://dx.doi.org/10.1117/12.274167.
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