Relevant bibliographies by topics / Radiographic pattern

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Academic literature on the topic 'Radiographic pattern'

Author: Grafiati
Published: 8 September 2021
Last updated: 3 February 2022

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Journal articles on the topic "Radiographic pattern"

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Lacava, Giuseppe, Eric Zini, Federica Marchesotti, et al. "Computed tomography, radiology and echocardiography in cats naturally infected with Aelurostrongylus abstrusus." Journal of Feline Medicine and Surgery 19, no. 4 (2016): 446–53. http://dx.doi.org/10.1177/1098612x16636419.

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Objectives The aims of the study were to describe the radiographic and computed tomographic features in cats naturally infected with Aelurostrongylus abstrusus, and to identify signs of pulmonary hypertension with echocardiography. Methods Fourteen cats positive on Baermann test for A abstrusus were included in the study. All cats underwent thoracic radiography, CT and echocardiography. Results The most common clinical signs were coughing (10/14) and dyspnoea (5/14). Radiographic findings included a generalised unstructured interstitial pulmonary pattern (8/14), mixed bronchointerstitioalveolar pattern (3/14) and bronchointerstitial pattern with bronchial wall thickening (3/14). Sternal lymphadenopathy was detected on thoracic radiographs in six cats. On CT, features were mixed bronchointerstitioalveolar pattern with ground-glass appearance in six cats, interstitioalveolar with multiple pulmonary nodules in five, interstitial ground-glass infiltrates in three, regional lymph node enlargement in 11 (10 sternal, three cranial mediastinal and three tracheobronchial lymph nodes) and subpleural thickening in four. None of the thoracic radiographs revealed subpleural thickening. In all cases, pulmonary vessels were normal in terms of size, shape and attenuation on both radiography and CT. Pulmonary hypertension and cardiac abnormalities were not observed in any cat during echocardiography. Conclusions and relevance CT provided a more thorough characterisation of pulmonary and mediastinal lesions compared with thoracic radiographs in cats naturally infected with A abstrusus. Although feline aelurostrongylosis has been previously associated with histopathological lesions in lung arteries, in this cohort clinical evidence of pulmonary hypertension was not documented.
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Traslaviña, Julián A., Manuel M. Martínez, Maria J. Olivera, and Ramón M. Balsalobre. "Comparative study of transthoracic ultrasound and chest X-ray in the postoperative period of thoracic surgery." International Surgery Journal 4, no. 9 (2017): 2925. http://dx.doi.org/10.18203/2349-2902.isj20173872.

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Background: Chest radiography is currently the reference technique in postoperative follow-up of thoracic surgery. However, routine use (almost daily) has been repeatedly questioned. Moreover, transthoracic ultrasound, besides being a useful technique in pleuropulmonary pathology offers additional advantages over the radiograph. The aim of this study is to analyse the diagnostic agreement between radiographic and ultrasound techniques in the postoperative follow-up of thoracic surgery.Methods: Observational, prospective study, in the postoperative period of thoracic surgery, to study the concordance between the ultrasound and radiographic findings. Sixty patients were evaluated during the postoperative period with the two diagnostic tests, first the lung ultrasound of the 2 hemithorax and then the chest radiograph. Each patient had an ultrasound and an X-ray. The sonographer and radiologist have independently assessed the occurrences of pneumothorax, pleural effusion, pulmonary consolidation, and interstitial pattern.Results: The Cohen kappa index for pneumothorax was 0.706 (p <0.001), for pleural effusion 0.588 (p <0.001), for interstitial pattern 0.471 (p <0.001) and for pulmonary consolidation 0.282 (p 0.002).Conclusions: The diagnostic concordance between radiographic and ultrasound techniques in the postoperative period of thoracic surgery is substantial for pneumothorax, pleural effusion and interstitial pattern, and fair for pulmonary consolidation.
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Korstjens, C. M., L. Mosekilde, R. J. Spruijt, W. G. M. Geraets, and P. F. van der Stelt. "Relations between Radiographic Trabecular Pattern and Biomechanical Characteristics of Human Vertebrae." Acta Radiologica 37, no. 3P2 (1996): 618–24. http://dx.doi.org/10.1177/02841851960373p240.

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Purpose: Relations between the radiographic trabecular pattern and the biomechanical characteristics of bone were studied. Material and Methods: The material comprised L2 and L3 vertebral bodies of 14 individuals (aged 22–76 years; 6 women and 8 men). Compressive strength and ash density of the complete L2 vertebral body were determined. Of the L3 vertebral body, ash density and compressive strength in both horizontal and vertical directions were measured on cylinders of merely trabecular bone. Radiographs were taken of a midsagittal slice of L3 vertebrae. They were digitized to measure trabecular bone geometry and orientation. The procedure was repeated several times to obtain reliable measures. Results: The radiographic trabecular pattern was significantly related to compressive strength, ash density and age. One of the radiographic geometric features in particular seems to offer information concerning the structural integrity of the trabecular architecture. Conclusion: Analysis of the radiographic trabecular pattern appears to be a promising technique for prediction of trabecular bone strength.
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Shah, Shreyas Predeepkumar, NB Praveen, Vaseemuddin Syed, and AR Subhashini. "Elongated Styloid Process: A Retrospective Panoramic Radiographic Study." World Journal of Dentistry 3, no. 4 (2012): 316–19. http://dx.doi.org/10.5005/jp-journals-10015-1181.

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ABSTRACT The styloid process is a cylindrical, long cartilaginous bone which arises from the temporal bone in front of the stylomastoid foramen. In the present study, our aim is to investigate the number of asymptomatic styloid process elongation (SPE) in relation to gender, type of elongation and calcification pattern in patients visited to maxillofacial radiology department. We have investigated styloid process using panoramic radiographs taken of 517 patients referred to our hospital. A total of 80 patients (15.47%) had elongated styloid processes (ESPs); 31 patients were female (38.75%) and 49 were male (61.25%). Among the ESPs Type I was the most frequent pattern of SPE (65.85%), then Type II (18.29%) and Type III (15.85%) pattern of elongation. The most frequent pattern of calcification was calcified outline (40.64%) then partially calcified (29.14%), nodular calcification (17.11%) and completely calcified (13.10%). From this study it was concluded that the panoramic radiography can be used for diagnosis of ESP but the norms which explain ESP are needed to be re-evaluated. How to cite this article Shah SP, Praveen NB, Syed V, Subhashini AR. Elongated Styloid Process: A Retrospective Panoramic Radiographic Study. World J Dent 2012;3(4):316-319.
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Sides, D., A. Laorr, and A. Greenspan. "Carpal scaphoid: radiographic pattern of dislocation." Radiology 195, no. 1 (1995): 215–16. http://dx.doi.org/10.1148/radiology.195.1.7892472.

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Geraets, Wil G. M., and Paul F. Van der Stelt. "Analysis of the radiographic trabecular pattern." Pattern Recognition Letters 12, no. 9 (1991): 575–81. http://dx.doi.org/10.1016/0167-8655(91)90168-l.

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Inagaki, H., R. Nakamura, E. Horii, E. Nakao, and M. Tatebe. "DIFFERENCES IN RADIOGRAPHIC FINDINGS BETWEEN SCAPHOID FRACTURE PATTERNS." Hand Surgery 09, no. 02 (2004): 197–202. http://dx.doi.org/10.1142/s0218810404002364.

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Scaphoid fracture patterns can be divided into volar and dorsal type using three-dimensional computed tomography. Ninety-nine patients underwent this examination plus radiography to determine how often fracture pattern was identifiable by radiography including proximal fragment ratio (PFR) measurement. Oblique radiographs obtained at 45° of pronation demonstrated a volar displacement in 28 of 37 volar type fractures in three-dimensional computed tomography (76%), while as oblique view with 45° of supination could identify the dorsal type in ten of 18 (56%). PFR showed a significant difference, with means of 0.59 for volar type and 0.43 for dorsal type. Using oblique views in the two rotational directions together with the PFR, the two fracture patterns could be differentiated in 35 of 43 fractures (81%). No differences were evident between the two fracture patterns with respect to prevalence of dorsal intercalated segment instability deformity.
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Tan, Victoria, Nathan Evaniew, Karen Finlay, et al. "Chronology of the Radiographic Appearances of the Calcium Sulfate-Calcium Phosphate Synthetic Bone Graft Composite following Resection of Bone Tumors: A Follow-up Study of Postoperative Appearances." Canadian Association of Radiologists Journal 67, no. 1 (2016): 21–27. http://dx.doi.org/10.1016/j.carj.2014.11.004.

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Purpose The objective of the study was to characterize the radiographic appearance of graft resorption and new bone incorporation into a postresection defect of the calcium-sulfate calcium-phosphate synthetic bone graft composite following resection of benign bone tumours. Methods Twenty-five patients who underwent treatment with the CaSO4/CaPO4 synthetic graft following bone tumour resection were retrospectively identified from our oncology database. Postoperative radiographs were assessed for: 1) combined partial graft resorption and ingrowth at the graft site; 2) complete graft resorption with complete incorporation of new bone into the defect. After chronologically grouping radiographs, the volume of graft material used to fill bony defects, radiographic evidence of complications, and patterns of resorption were recorded. Results Partial resorption of graft material/partial ingrowth of new bone was seen in 21 patients at 2.5 months postoperatively. Complete resorption of graft with complete new bone incorporation at the graft site was seen in 94% of cases (15 of 16) by 10 months after surgery. Mean time to complete incorporation of new bone was 6.7 months. Time to resorption of the graft with new bone ingrowth was found to be related to the volume of graft used with smaller volumes showing earlier resorption. For all cases demonstrating resorption (21 of 21), the pattern observed was peripheral to central. Five patients developed complications, including tumour recurrence, cyst formation, and graft site infection. Conclusion Our study suggests a characteristic time and volume related radiographic pattern of resorption and new bone ingrowth with the CaSO4/CaPO4 synthetic graft. Findings that deviate from this pattern may represent complication and warrant additional follow-up.
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Ruttimann, U. E. "Computer-Based Reconstruction and Temporal Subtraction of Radiographs." Advances in Dental Research 1, no. 1 (1987): 72–79. http://dx.doi.org/10.1177/08959374870010011601.

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The most important physical parameter limiting the diagnostic performance achieved with radiographic images is the signal-to-noise ratio (SNR). In most dental applications, the normal anatomical structures contribute to a background pattern in the image that is limiting the SNR attainable. Hence, the projection direction of radiographs is a fundamental determinant of the SNR. The acquisition of a basis set of projection images obtained from a plurality of spatially registered sampling directions permits the reconstruction of any desired slice lying within a limited volume by tomosynthesis. Alternatively, the multi-projection strategy permits synthesis of any arbitrary radiographic image whose projection direction lies within the cone spanned by the basis projection directions. This feature can be used to synthesize a desired image at the proper projection angle required for meaningful subtraction from a previously obtained radiograph, and thus to suppress anatomy-related background variations.
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Prodhan, Md Rubayet Alam, Md Shahidul Islam, Rifat Rezwana, and Md Moynul Hasan. "Pattern of Impacted Mandibular Third Molar Teeth in Rangpur Region, Bangladesh: A Radiological Evaluation." KYAMC Journal 12, no. 1 (2021): 8–13. http://dx.doi.org/10.3329/kyamcj.v12i1.53360.

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Background: Third molar is the most commonly impacted tooth in the oral cavity and accounts for large of all impactions. The most common complication in the extraction of the third mandibular molars is nerve and vessels damage. Therefore, thorough radiographic assessment is a necessary to avoid these surgical complications.
 Objective: The purpose of this study was to evaluate the frequency, angulation, depth of the impacted mandibular third molars and its relationship with ramus on radiographs.
 Materials and Methods: This study comprised 800 orthopantomograms (OPGs) of patients attending different dental clinics and hospitals in Rangpur region, Bangladesh between June 2014 to May 2015. Panoromic Radiographic assessment was carried out to evaluate the pattern of third molar impaction in terms of age, gender, angulation of impaction, level of eruption and available retromolar space using panoramic radiographs and Pell & Gregory classification.
 Results: A total of 314 radiographic third molar areas were found in this study, out of them 137 belong to male patients and 177 belong to the female patients. The mesio angular types of angulation was most prevalent (46%) whereas distoangular was rare (5%) in our study. In relation to anterior border of the ramus of mandible Level B 52% and Class II 59% were the most common pattern of impaction. The female tends to be dominant as compared to male & the maximum number (35%) of impacted third molars are found in an age group of 38 years and above.
 Conclusion: Panoramic radiographs can be used as reliable investigation for evaluation of impacted mandibular third molar.
 KYAMC Journal.2021;12(01): 08-13
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Dissertations / Theses on the topic "Radiographic pattern"

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Viveiros, Carla Sofia Santos. "Edema pulmonar cardiogénico em felinos." Master's thesis, Universidade de Évora, 2021. http://hdl.handle.net/10174/29809.

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O presente trabalho é composto por três partes. A primeira consiste num relatório de estágio que decorreu durante três meses no Hospital Veterinário do Atlântico; a segunda consiste numa revisão bibliográfica sobre o edema pulmonar cardiogénico em gatos; e a terceira consiste num estudo de caso sobre o mesmo tema. Foram realizados também três meses de estágio adicionais em âmbito da clínica ambulatória na área de cardiologia. No entanto, estes não serão contabilizados para efeitos de relatório de estágio. No decorrer do estágio curricular foram acompanhadas as áreas de medicina preventiva e clínica médica e cirúrgica. Também foi possível acompanhar inúmeras cirurgias e consultas de especialidade e a realização exames complementares na área de imagiologia e análises laboratoriais; Cardiogenic pulmonary edema in felines Abstract: The present report comprises three parts. The first details the caseload observed in a three-month traineeship at the Atlantic Veterinary Hospital. The second consists of a literature review on cardiogenic pulmonary edema in felines. The third part consists of a case study on the same subject. An additional traineeship was also performed, for three months, in an ambulatory cardiology clinic; however, it will not be included in the report above. During the traineeship at the Atlantic Veterinary Hospital, it was allowed to assist procedures in preventive medicine and medical and surgical clinic. It was also possible to help in numerous surgeries and specialties appointments, perform complementary exams and reinforce imagiological and laboratory diagnosis skills.
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Pereira, Vânia Carina Ventura. "Edema pulmonar em gatos." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2019. http://hdl.handle.net/10400.5/19287.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>O edema pulmonar é uma emergência médica que resulta de um distúrbio hemodinâmico de um ou mais sistemas. Tem um desenvolvimento agudo ou progressivo, mas com descompensação rápida que necessita de uma resposta imediata do médico veterinário. Este trabalho resultou de um estudo retrospectivo de uma amostra de onze gatos diagnosticados com edema pulmonar no Hospital VetSet, em Palmela e no Hospital do Atlântico, em Mafra, tendo sido feita a análise dos processos clínicos, dos exames complementares de diagnóstico realizados (radiografias torácicas e ecocardiogramas). Os principais objetivos foram: identificar a causa de edema pulmonar mais frequente; os sinais mais comuns; os padrões radiográficos, a distribuição pulmonar e simetria do edema pulmonar apresentados; associar o vertebral heart size (VHS) com o tipo de edema pulmonar encontrado; avaliar a gravidade do edema pulmonar; identificar o tratamento médico mais utilizado e quantificar o tempo de internamento e a sua necessidade. As características pulmonares mais frequentemente encontradas no exame radiográfico foram: o padrão misto (brônquico-intersticial ou interstício-alveolar), a distribuição uniforme difusa, maioritariamente simétrica e com grandes alterações de edema pulmonar. As causas de edema pulmonar mais prevalentes neste estudo foram de origem cardíaca ou mista. Nestes verificou-se um aumento do VHS, enquanto nos restantes casos (causa não cardíaca) apresentavam VHS apresentava-se normal ou com um aumento discreto. Pelo estudo ecocardiográfico verificou-se que as afeções cardíacas mais encontradas foram a hipertrofia do ventrículo esquerdo e a dilatação atrial esquerda. Os sinais mais frequentes foram a dispneia, a taquipneia, a taquicardia, a presença de fervores e de sopro sistólico. Já o tratamento de primeira linha continua a ser o recurso a diuréticos da ansa, seguido dos inibidores da enzima de conversão da angiotensina (IECAs) em casos de causa cardiogénica ou mista e de medicação dirigida a afeções secundárias. Para alívio dos sinais respiratórios e de ansiedade recorreu-se à oxigenoterapia e sedação. O internamento, quando necessário, foi de curta duração e os animais eutanasiados foram-no pela afeção primária causadora do edema pulmonar e não por esta complicação. Apesar da amostra de animais do estudo ter sido pequena, os resultados obtidos foram concordantes com a literatura existente.<br>ABSTRACT - Pulmonary edema is a medical emergency that results from a hemodynamic disorder of one or more systems. It has an acute or progressive development, but with rapid decompensation that needs immediate response from the veterinarian. This study was the result of a retrospective study of a sample of eleven cats diagnosed with pulmonary edema at VetSet Hospital in Palmela and at Atlântico Hospital in Mafra. The clinical processes, the complementary diagnostic tests (chest X-rays and echocardiograms) were analyzed. The main objectives were: to identify the cause of the most frequent pulmonary edema; the most common signs; the radiographic patters, pulmonary distribution and symmetry of pulmonary edema presented; associate the vertebral heart size (VHS) with the type of pulmonary edema found; assess the severity of pulmonary edema; identify the most commonly used medical treatment and quantify the lenght of stay and its need. The pulmonary characteristis most frequently found on radiographic examination were: mixed pattern (bronchial-intersticial or intersticial-alveolar), diffuse uniform distribution, mostly symmetrical and with large changes in pulmonary edema. The most prevalente causes of pulmonary edema in this study were of cardiac or mixed origin. In these cases, there was an increase in VHS, while the remaining cases (noncardiac cause) had normal ou slightly increased VHS. The echocardiographic study showed that the most common cardiac pathologies were left ventricular hypertrophy and left atrial dilatation. The signs more frequent were dyspnea, tachypnea, tachycardia, the presence of fervors and systolic murmur. First-line treatment remains the use of loop diuretics followed by angiotensin converting enzyme inhibitors (IECAs) in cases of cardiogenic or mixed cause and medication directed to secondary pathologies. To relieve respiratory signs and anxiety, oxygen therapy and sedation were used. Hospitalization, when necessary, was short and euthanized animals were due to the primary pathology that caused pulmonary edema and not to this complication. Although the sample of animals in this study was small, the results obtained were consistente with the literature.<br>N/A
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Marshall, Michelle. "Patterns of radiographic hand osteoarthritis and associations with pain and function : a prospective cohort study." Thesis, Keele University, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.522666.

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Radiographic hand osteoarthritis (OA) affects a large number of older people and can lead to significant pain and disability. Patterns of radiographic hand OA and associations with pain and function have not being studied in detail. A systematic search and review was undertaken to determine methods used to examine radiographic hand OA. The thumb interphalangeal joint was infrequently studied and inconsistently grouped with other hand joints. The Kellgren and Lawrence grading system was the most frequently used to assess and define hand OA within published communitybased epidemiological studies. Community-dwelling adults (z50 years) who had experienced hand pain or hand problems in the previous year were recruited to a cohort, the Clinical Assessment Study of the Hand (n=623). Presence of hand OA was assessed on radiographs using the Kellgren and Lawrence grading system. Patterns of radiographic OA in the hand joints were investigated and analysis identified that the finger joints grouped by rows whilst the four joints of the thumb grouped together as a ray. The location of radiographic OA in the hand and its contribution to hand pain and functional limitation were explored. Participants with combined radiographic finger and thumb OA had more pain and functional limitation than individuals with thumb or finger OA alone. Further study of the thumb found associations between thumb pain, thenar muscle wasting, presence of nodes, deformity or enlargement and the presence of radiographic thumb OA. Ei]The course of radiographic hand OA over time was examined. Almost half the individuals reported deterioration in their hand problem, and small increases in hand pain and functional limitation were seen at 18 months and 3 years. Poorer overall physical functioning was found in the combined finger and thumb OA sub-group at baseline. However, over a3 year period very little change was seen in overall physical functioning or general health
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Opondo, Florence. "The prevalence and pattern of mid facial fractures at Tygerberg oral health centre." University of the Western Cape, 2019. http://hdl.handle.net/11394/7049.

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>Magister Scientiae - MSc<br>Background: Changing trends have been observed in the prevalence, etiology, imaging practice and pattern of presentation of mid facial fractures in different geographical regions. Conventional (plain) radiographs remain the most common initial investigative tool for general appraisal of suspected fractures, while advanced imaging is currently the most common final investigation. This study explored the clinico-radiologic patterns of mid facial fractures with main focus on demographic characteristics, etiology, fracture patterns and imaging practice. Aim: To determine the Prevalence, Clinical and Radiologic patterns of mid-facial fractures at Tygerberg Oral Health Centre, Faculty of Dentistry, University of the Western Cape Methodology: A retrospective cross sectional quantitative descriptive study of mid facial fractures was conducted at The University of the Western Cape’s Faculty of Dentistry based at the Tygerberg Oral Health Centre (TOHC). The study population comprised 239 patients who presented with mid facial fractures over 2 years, from January 2015 to December 2016. The data captured included demographic details, etiology, fracture site(s) and radiological investigations performed. Results: A vast male predominance was observed (M: F=5.3:1). The age range was 7-76 years (mean 31.94; SD 13.13). The most affected age category was 21 to 30 years (39.7%) while the least affected groups were children aged 0 to 10 years and patients above 70 years old. A total of 285 individual fractures were identified among the 239 patients (mean of 1.2 fractures per patient). The most common pattern of fracture was zygomatic complex (24.9%) while Le Fort fractures were the least common (5.3%). 20.1% of patients had concomitant fractures of other bones of the face and skull. There was no association between gender and site of fracture (p = 0.812). Panoramic radiography was the most common initial investigation. A panoramic radiograph in combination with various conventional extraoral views were sufficient for diagnosis in 18.8% of the patients. However, majority (53.6%) had all the three types of imaging performed (panoramic radiograph, conventional extra oral views and advanced imaging). The most common etiological factor was assault (73.6%). There was no association between gender and aetiology of fracture (p = 0.537)
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Houam, Lotfi. "Contribution à l'analyse de textures de radiographies osseuses pour le diagnostic précoce de l'ostéoporose." Phd thesis, Université d'Orléans, 2013. http://tel.archives-ouvertes.fr/tel-01022935.

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L'ostéoporose est une maladie osseuse caractérisée par une perte importante de la masse osseuse et des altérations de la microarchitecture du tissu osseux. Aujourd'hui, en routine clinique, le diagnostic de l'ostéoporose est basé principalement sur une mesure de la densité minérale osseuse qui n'est pas suffisante, car elle doit être accompagnée par une analyse de la qualité de la microarchitecture osseuse. Les travaux présentés dans cette thèse concernent la caractérisation des images de radiographies osseuses pour le diagnostic précoce de l'ostéoporose. Pour ce faire, afin de mieux caractériser la texture osseuse sur radiographie, nous avons introduit une nouvelle technique de prétraitement des données pour réduire les redondances et éliminer le bruit issu des capteurs d'acquisition. Pour la caractérisation, nous avons proposé une nouvelle technique d'analyse inspirée des motifs binaires locaux (Local Binary Patterns, LBP). Le nouveau descripteur, appelé 1DLBP (One Dimensional Local Binary Patterns) s'applique de manière unidimensionnelle. Pour tester l'efficacité de notre approche, nous avons réalisé deux études cliniques où le nouveau descripteur LBP1D est comparé à la méthode classique, LBP afin de classifier des patients ostéoporotiques et des sujets sains. Les pourcentages de classification obtenus ont été améliorés de 72% avec la méthode classique LBP à 91% avec le nouveau descripteur 1DLBP.
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Chetty, Seshree. "The determination of the need for after- hours diagnostic radiological reporting in emergency departments." Thesis, Cape Peninsula University of Technology, 2019. http://hdl.handle.net/20.500.11838/3075.

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Thesis (MSc (Radiography))--Cape Peninsula University of Technology, 2019<br>Introduction: After-hours diagnostic imaging is essential in the majority of large public hospitals, as it plays a vital role in the treatment and management of patients. Radiologists are not always available after hours to provide reports on radiographic images since, nationally and globally, there is a shortage of these professionals. Radiographic images are frequently interpreted by emergency physicians after hours. Thus, while diagnostic imaging represents an essential component in patient care (including management and treatment), according to the literature, a significant cause of clinical error occurs through the misinterpretation of radiographic images by emergency physicians. The aim of this study was to determine emergency physicians’ views on whether there was a need for an after-hours diagnostic radiology reporting service in emergency departments at some public hospitals, in the Durban Metropole. It is important to note that in addition to the above, this study calculated the number of radiographic examinations performed after-hours, and the number that was reported by the radiologist during office hours, since there was no radiology cover after hours. Methods: A descriptive cross-sectional quantitative survey design was employed using a self-administered questionnaire as a data collection instrument completed by emergency physicians at four public hospitals. In addition, additional data was collected to determine the number of radiographic examinations that had been performed after hours, at the selected four public hospitals over a period of three months, as well as the number of radiographic examinations that was reported on. This enabled the authors to determine the number of radiographic examinations that went unreported during this study period. Results: A total of 39 emergency physicians participated in the survey, with a mean and median age of 39.46 and 38 years, respectively (SD = 9.11 years). The results of this study showed that between 0.1% and 0.6% of radiographic examinations performed after hours were reported on by radiologists during office hours, for this study period. This implies that less than 1% of all examinations produced after hours at the four public hospitals, received a radiology report. Emergency physicians felt that the interpretation of images took up valuable time. The survey found that there was near total consensus amongst respondents on whether they prefer after-hours reporting to be performed by a radiologist as 46.2% (n = 18) of the respondents strongly agreed and 41.0% agreed (n = 16). Furthermore, a total of 35.9% (n=14) of respondents agreed and 43.6% (n=17) strongly agreed, that having a reporting radiographer reporting on radiographic images after-hours, would benefit patient flow. The survey also found that 92% of the sampled emergency physicians agreed (59.0% strongly agreed and 33.3% agreed, respectively) that there was a need for further training in the interpretation of radiographic images. Discussion: From the above results, it is evident that since the majority of radiographic examinations went unreported after hours, the task to interpret the radiographic images is left to the emergency physicians as part of their patient management. Conceivably, this added image interpretation results in a further increase in the workload of emergency physicians. It is therefore not surprising that emergency physicians preferred that after-hours reporting of radiographic images be done by radiologists. According to the literature, reporting radiographers also play a role in alleviating the workload of emergency physicians and improving patient flow, by providing a report for the radiographic images during after-hours. Thus, reporting radiographers afford emergency physicians additional time to concentrate on patient treatment, resulting in faster patient throughput. Reporting on radiographic images is not yet included in the scope of the South African radiographer. The findings of this study, though, suggested that there was a need for emergency physicians to undergo training in the interpretation of radiographic images. Conclusion: The study recommends that an after-hours reporting service be considered for the four public hospitals concerned. It is recommended that the heads of the emergency and radiology departments further consider offering courses on radiographic image interpretation for emergency physicians.
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Queiroz, Gilberto Vilanova. ""Estudo comparativo da morfologia craniofacial entre crianças leucodermas brasileiras, com oclusão normal, portadoras de perfil facial tegumentar equilibrado, com tendência reta e convexa"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/23/23133/tde-06062005-152002/.

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Esta pesquisa teve dois objetivos: 1) Comparar as características craniofaciais entre crianças portadoras de perfil tegumentar do terço facial inferior equilibrado com tendência reta com crianças portadoras de perfil tegumentar do terço facial inferior equilibrado com tendêcia convexa; 2) Verificar a variabilidade entre as combinações dos componentes morfológicos na conformação craniofacial deste indivíduos. A amostra constou de 48 telerradiografias em norma lateral, de crianças leucodermas brasileiras, 24 do gênero feminino e 24 do masculino, portadoras de oclusão dentária normal, face equilibrada, lábios competentes,sem tratamento ortodôntico prévio, com dentadura mista, abrangendo faixa etária dos 7 aos 10 anos de idade. A amostra foi dividida em 2 grupos de 24 indivíduos, com igual número de componentes entre os gêneros feminino e masculino. O grupo I foi composto por indivíduos que exibiram perfil tegumentar do terço facial inferior equilibrado com tendência reta, enquanto o grupo II foi constituído por indivíduos que apresentaram perfil tegumentar do terço facial inferior equilibrado com tendência convexa. Foram utilizadas grandezas cefalométricas angulares e proporcionais para a descrição das características craniofaciais. Após a análise estatística e a interpretação dos resultados obtidos, concluiu-se que existem semelhanças morfológicas entre os grupos I e II na inclinação da base craniana posterior, ângulo goníaco; altura facial anterior, altura do ramo mandibular, altura alveolar superior e no posicionamento ântero-posterior da região posterior da maxila. Ocorreram diferenças morfológicas estatisticamente significativas nas inclinações do ramo mandibular, corpo mandibular, incisivos superiores, incisivos inferiores e, ainda, na altura facial posterior total, altura craniana posterior, altura total da face média, altura orbitária, altura maxilar basal, altura dentoalveolar inferior, largura do ramo mandibular, comprimento do corpo mandibular, posição ântero-posterior do primeiro molar superior na face média e espessura de tecidos moles na região do mento. A elevada variabilidade nas combinações entre os componentes craniofaciais, evidenciou a inexistência de padrões morfológicos específicos, tanto para o grupo de indivíduos portadores de perfil tegumentar reto como para o grupo de perfil tegumentar convexo. A hipótese de obtenção de grupos homogêneos, utilizando-se como critério de seleção a convexidade do perfil tegumentar, foi rejeitada.<br>This study had 2 different purposes: 1) Compare the craniofacial characteristics among children with soft tissue profile with a balanced inferior third and a straight tendency with children with a soft tissue profile with a balanced inferior third and a convex tendency; 2) verify the variability among the combinations of the morphologic components in the craniofacial conformation of those individuals. The sample was composed of 48 telerradiographs in lateral position of Caucasian Brazilian children, 24 boys and 24 girls, with normal dental occlusion, balanced face, competent lips, without previous orthodontic treatment, with a mixed dentition and age between 7 to 10 years old. The sample was divided in 2 groups of 24 individuals with equal number of both genders. Group I was composed of individuals that showed a soft tissue profile with a balanced inferior third and a straight tendency, and group II was composed of individuals with a soft tissue profile with balanced inferior third and a convex tendency. For this work, angular and proportional cephalometric variables to describe the craniofacial characteristics were used. After the statistical analysis and interpretation of the results, it was concluded that morphologic similarity was found between the groups I and II in the inclination of the posterior cranial base, gonial angle, anterior facial height, mandibular ramus height, alveolar superior height, and in the anteroposterior placement of the posterior region of the maxilla. Significant morphologic differences were found in the inclination of the mandibular ramus, mandibular body, upper and lower incisors, and in the total posterior facial height, cranial posterior height, total height of the medium face, orbital height, maxilla basal height, inferior dentoalveolar height, mandibular ramus wideness, mandibular ramus length, anteroposterior position of the first upper molar in the medium face and the thickness of the soft tissue in the pogoniun region. The high variability of combinations among the craniofacial components showed the nonexistence of specific morphological patterns for the children with a soft tissue profile with a balanced inferior third and a straight tendency and those with a convex tendency. The hypothesis to obtain homogeneous groups using the convexity of the soft tissue profile as selection criteria was rejected.
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McKenna, Catherine Josephine. "Accuracy in the comparison of trabecular bone patterns and other hard tissue features visible on digitised dental radiographs in forensic dental identification." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09SDN/09sdnm4788.pdf.

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Kupinski, Matthew A. "Computerized pattern classification in medical imaging /." 2000. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:9978001.

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Hazell, Lynne Janette. "A study to assess the ability of radiographers to apply pattern recognition criteria and interpret radiographs." Thesis, 2013. http://hdl.handle.net/10210/8738.

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M.Tech. (Radiography (Diagnostic))<br>In order to meet the needs of the country South African radiographers need to become multi skilled radiographers. Empowering diagnostic radiographers with pattern recognition skills to enable them to comment on images could address the problem in many South African departments where a shortage of radiologists’ results in delayed reports or no reports to referring doctors. The research assessed the ability of qualified diagnostic radiographers in two Gauteng Government Hospital’s to apply pattern recognition and provide a comment on a radiograph after training in musculoskeletal pattern recognition. The study employed a pre- and post-test model with an intervention which comprised training of radiographers in musculoskeletal pattern recognition. The post- test results showed a significant improvement in the accuracy of identifying abnormal images and the comments provided were more complete than before training. Thus the intervention was successful in improving the ability of the radiographers to recognize normal and abnormal images, however, the training would need to be more extensive for an accurate comment to be provided on musculoskeletal images.
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Books on the topic "Radiographic pattern"

1

Orthopaedic radiology: Pattern recognition and differential diagnosis. 2nd ed. Martin Dunitz, 1998.

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Renton, Peter. Orthopaedic radiology: Pattern recognition and differential diagnosis. Martin Dunitz, 1990.

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E, Forseen Scott, ed. Pattern recognition neuroradiology. Cambridge University Press, 2011.

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Gastrointestinal radiology: A pattern approach. 4th ed. Lippincott Williams & Wilkins, 2003.

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Gastrointestinal radiology: A pattern approach. 2nd ed. Lippincott, 1990.

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Gastrointestinal radiology: A pattern approach. 3rd ed. Lippincott-Raven Publishers, 1996.

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Peter, Renton. Orthopaedic radiology: Pattern recognition and differential diagnosis. Year Book Medical Publishers, 1990.

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Peter, Renton. Orthopaedic radiology: Pattern recognition and differential diagnosis. Martin Dunitz, 1990.

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Reed, James Croft. Chest radiology: Plain film patterns and differential diagnoses. 6th ed. Mosby Elsevier, 2011.

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Chest radiology: Plain film patterns and differential diagnoses. 2nd ed. Year Book Medical Publishers, 1987.

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Book chapters on the topic "Radiographic pattern"

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Grainger, Andrew J., and Charles S. Resnik. "Arthritis." In IDKD Springer Series. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71281-5_11.

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AbstractImaging plays an important role in the diagnosis and management of joint disease. However, to accurately diagnose the underlying cause of a patient’s arthritis, consideration must be given to the clinical information available as well as to the imaging features of the disease. The pattern of joint involvement in each case is particularly important, with consideration of the number of joints involved, whether or not the joints are affected symmetrically on both sides of the body, and which specific joints are affected. In cases of peripheral arthritis involving the small joints of the hands and feet, the distribution of joint disease detected on the radiograph is often as important in making the correct diagnosis as the radiographic features of the disease.While cross-sectional imaging modalities have an important role to play, the conventional radiograph remains fundamental to the diagnosis of joint disease and is commonly the first imaging investigation undertaken.
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Bahk, Y. W., and S. K. Chung. "99mTc-Phytate Aerosol Scan of Nonembolic Pulmonary Diseases: A Pattern Analysis with Radiographic Correlation." In Nuclear Imaging of the Chest. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-80387-1_5.

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Campadelli, Paola, and Elena Casiraghi. "Lung Field Segmentation in Digital Postero-Anterior Chest Radiographs." In Pattern Recognition and Image Analysis. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11552499_81.

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Shao, Yunxue, and Xin Wang. "A Two Stage Method for Abnormality Diagnosis of Musculoskeletal Radiographs." In Pattern Recognition and Artificial Intelligence. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-59830-3_53.

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Goumeidane, Aicha Baya, Abdessalem Bouzaieni, Nafaa Nacereddine, and Salvatore Tabbone. "Bayesian Networks-Based Defects Classes Discrimination in Weld Radiographic Images." In Computer Analysis of Images and Patterns. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23117-4_48.

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Yu, Mochen, Yuke Guo, Diya Sun, Yuru Pei, and Tianmin Xu. "Automatic Tooth Segmentation and 3D Reconstruction from Panoramic and Lateral Radiographs." In Pattern Recognition and Computer Vision. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60633-6_5.

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Mukherjee, Avishek. "Feature Engineering for Cardio-Thoracic Disease Detection from NIH Chest Radiographs." In Computational Intelligence in Pattern Recognition. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-2449-3_23.

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Romaniuk, B., M. Desvignes, J. Robiaille, M. Revenu, and M. J. Deshayes. "Augmented Reality and Semi-automated Landmarking of Cephalometric Radiographs." In Computer Analysis of Images and Patterns. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-44692-3_50.

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Tsevas, Spyros, Dimitris K. Iakovidis, and George Papamichalis. "Mining Patterns of Lung Infections in Chest Radiographs." In IFIP Advances in Information and Communication Technology. Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0221-4_25.

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Goumeidane, Aicha Baya, Nafaa Nacereddine, and Mohammed Khamadja. "Local and Global Statistics-Based Explicit Active Contour for Weld Defect Extraction in Radiographic Inspection." In Computer Analysis of Images and Patterns. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-40246-3_61.

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Conference papers on the topic "Radiographic pattern"

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Selby, Boris Peter, Georgios Sakas, Stefan Walter, Wolf-Dieter Groch, and Uwe Stilla. "Internal evaluation of registration results for radiographic images." In 2008 19th International Conference on Pattern Recognition (ICPR). IEEE, 2008. http://dx.doi.org/10.1109/icpr.2008.4761692.

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Chowdhury, Manish, Samuel Rota Bulo, Rodrigo Moreno, Malay Kumar Kundu, and Orjan Smedby. "An efficient radiographic Image Retrieval system using Convolutional Neural Network." In 2016 23rd International Conference on Pattern Recognition (ICPR). IEEE, 2016. http://dx.doi.org/10.1109/icpr.2016.7900116.

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Antony, Joseph, Kevin McGuinness, Noel E. O'Connor, and Kieran Moran. "Quantifying radiographic knee osteoarthritis severity using deep convolutional neural networks." In 2016 23rd International Conference on Pattern Recognition (ICPR). IEEE, 2016. http://dx.doi.org/10.1109/icpr.2016.7899799.

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Ming, Ming, and Zheng Li. "Pattern recognition of internal structural defects in industrial radiographic testing based on neural network." In Multispectral Image Processing and Pattern Recognition, edited by Xubang Shen and Jianguo Liu. SPIE, 2001. http://dx.doi.org/10.1117/12.441683.

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Moghaddam, Alireza Azari, and Lalitha Rangarajan. "Enhancing Radiographic Images Using Two Dimensional Left Median Filter." In 2011 Third National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics (NCVPRIPG). IEEE, 2011. http://dx.doi.org/10.1109/ncvpripg.2011.50.

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Sasada, Ryoji, Masahiko Yamada, Shoji Hara, Hideya Takeo, and Kazuo Shimura. "Stationary grid pattern removal using 2D technique for moire-free radiographic image display." In Medical Imaging 2003, edited by Robert L. Galloway, Jr. SPIE, 2003. http://dx.doi.org/10.1117/12.479595.

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Shifeng Chen, Liangliang Cao, Jianzhuang Liu, and Xiaoou Tang. "Automatic Segmentation of Lung Fields from Radiographic Images of SARS Patients Using a New Graph Cuts Algorithm." In 2006 18th International Conference on Pattern Recognition. IEEE, 2006. http://dx.doi.org/10.1109/icpr.2006.304.

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Nakamura, Yutaro, Takafumi Suda, Masato Kono, et al. "Prognostic Significance Of Histopahotlogic And Radiographic Pattern In Interstitial Lung Disease Associated With Rheumatoid Arthritis." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a3031.

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Kim, EJ, F. Maldonado, BM Elicker, JH Ryu, TE King, Jr, and HR Collard. "Radiographic Usual Interstitial Pneumonia (UIP) Pattern and Survival in Rheumatoid Arthritis Associated Interstitial Lung Disease (RAILD)." In American Thoracic Society 2009 International Conference, May 15-20, 2009 • San Diego, California. American Thoracic Society, 2009. http://dx.doi.org/10.1164/ajrccm-conference.2009.179.1_meetingabstracts.a4501.

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Ines, LS, P. Reis, MJ Santos, et al. "THU0202 Pattern of radiographic damage of the hand joints in rheumatoid arthritis: a study of 193 patients." In Annual European Congress of Rheumatology, Annals of the rheumatic diseases ARD July 2001. BMJ Publishing Group Ltd and European League Against Rheumatism, 2001. http://dx.doi.org/10.1136/annrheumdis-2001.1104.

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