Relevant bibliographies by topics / Joints Three-dimensional imaging

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Joints Three-dimensional imaging'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 February 2022

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Journal articles on the topic "Joints Three-dimensional imaging"

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Kijowski, Richard. "Three-Dimensional Magnetic Resonance Imaging of Joints." Topics in Magnetic Resonance Imaging 21, no. 5 (2010): 297–313. http://dx.doi.org/10.1097/rmr.0b013e31823ccee5.

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Fukano, Mako, Yuji Kuroyanagi, Toru Fukubayashi, and Scott Banks. "Three-Dimensional Kinematics of the Talocrural and Subtalar Joints During Drop Landing." Journal of Applied Biomechanics 30, no. 1 (2014): 160–65. http://dx.doi.org/10.1123/jab.2012-0192.

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The bones and soft tissues of the foot act as a shock attenuator and the relative bony motions of the talocrural and subtalar joints are the subject of research interest for their roles in lower extremity pathology. Despite this interest, little information exists on the precise in vivo talocrural and subtalar joint kinematics during dynamic activities. Therefore, the purpose of this study was to quantify the three-dimensional kinematics of the talocrural and subtalar joints during landing by using single-plane fluoroscopic imaging and shape matching techniques. Three-dimensional bone positions for 6 subjects during landing from a 10 cm height were determined by using 3D-2D model-image registration techniques. The primary talocrural joint motion after toe contact was dorsiflexion with rotation ranges averaging 12° ± 7° dorsiflexion, 2° ± 2° eversion, and 3° ± 2° internal rotation. The subtalar joint exhibited similar patterns of increased dorsiflexion, eversion, and external rotation up to 150 ms after landing. The angular changes were 5° ± 3° dorsiflexion, 7° ± 3° eversion, and 6° ± 2° external rotation. This study contributes to the quantitative understanding of the function of the normal talocrural and subtalar joints and can be used for comparison with data obtained from injured feet.
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Liu, Songlin, Dasheng Gai, Qun Lu, et al. "Application of CT Image Based on Three-Dimensional Image Segmentation Algorithm in Diagnosis of Osteoarthritis." Journal of Medical Imaging and Health Informatics 11, no. 1 (2021): 230–34. http://dx.doi.org/10.1166/jmihi.2021.3432.

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Objective: To investigate the application of multi-slice spiral CT in degenerative changes of lumbar facet joints using the LOG algorithm. Methods: The CT findings of 100 cases of degenerative vertebral facet joint disease were reviewed and analyzed in this paper. Results: The main CT manifestations of facet disease are osteophyte formation, articular hyperplasia and hypertrophy, osteosclerosis, narrowing of joint space, articular surface destruction, joint capsule calcification, joint gas accumulation, joint subluxation, and lateral recesses and vertebrae. Signs such as narrow mesopores. Conclusion: The multi-slice spiral CT (MSCT) and multi-planar reconstruction (MPR) techniques are analyzed by the LOG operator algorithm. It is found that the two techniques can fully display the anatomical structure and pathological changes of the vertebral facet joints, and are useful for the diagnosis of facet joint disease. Provide enough imaging evidence.
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LEWIS, A. R., M. J. NOLAN, R. J. HODGSON, et al. "High Resolution Magnetic Resonance Imaging of the Proximal Interphalangeal Joints." Journal of Hand Surgery 21, no. 4 (1996): 488–95. http://dx.doi.org/10.1016/s0266-7681(96)80053-2.

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The magnetic resonance imaging appearance of the proximal interphalangeal joints of cadavers was correlated with histology of the same specimen allowing many small-scale features to be identified that might otherwise have been misinterpreted. It enabled the magnetic resonance signal to be understood at a tissue and cellular level, allowing identification of synovial folds extending from the extensor tendon and volar plate, the entheses of the proper collateral ligament, the epitenon of the flexor tendons and the presence of osteophytes and sites of cartilage erosion. The main difficulties in matching two-dimensional magnetic resonance images with histology were the differing section thicknesses of the two methods and shrinkage of histological specimens. There are many advantages in producing high resolution three-dimensional datasets—the magnetic resonance section thickness is reduced and the individual components of the joint can be viewed simultaneously in two or more planes. A unique magnetic resonance atlas of three dimensional joint structure is presented.
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Xi, Lei, and Huabei Jiang. "High resolution three-dimensional photoacoustic imaging of human finger joints in vivo." Applied Physics Letters 107, no. 6 (2015): 063701. http://dx.doi.org/10.1063/1.4926859.

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Wang, Qiu An, Chong Guo, Ma Ji Sun, and Feng Yuan. "Three-dimensional spiral CT observation of the facet joints of the lower cervical spine and its clinical significance." European Spine Journal 30, no. 6 (2021): 1536–41. http://dx.doi.org/10.1007/s00586-021-06743-1.

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Abstract Objective By observing the 3D anatomy of normal adult cervical facet joints, using the picture archiving and communication system to measure its 3D parameters and discussing its clinical significance, the aim of this study was to provide a reliable morphological basis for the design and manufacture of lower cervical facet joint interface distractors. Methods We selected 200 patients who underwent cervical spine 3D spiral computed tomography (CT) examination in the imaging department of our hospital from September 2019 to May 2020 and whose spiral CT images showed no cervical spinal canal stenosis, cervical disc herniation, obvious bone hyperplasia, or infection. The anterior and posterior diameters of the facet joints on both sides of the cervical spine, the space between the joints, and the left and right diameters were measured on the sagittal, cross-sectional and coronal planes after reconstruction with 3D spiral CT. Results The anterior and posterior diameters of the facet joints of the cervical spine, the space between the joints, and the left and right diameters all increased from top to bottom along the cervical spine. The 3D parameters of the C2-3~C6-7 segments were significantly different between the male and female groups. Conclusion The anteroposterior diameter, joint space interval, and left and right diameter of cervical facet joints are different in each segment and between the sexes. The lower cervical facet joint interface fusion device designed according to the measurement results can fully meet the needs of most patients.
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Neuman, Thomas R., Arne Hengesteg, Kenton R. Kaufman, Richard P. Lepage, and Gayle E. Woodson. "Three-Dimensional Motion of the Arytenoid Adduction Procedure in Cadaver Larynges." Annals of Otology, Rhinology & Laryngology 103, no. 4 (1994): 265–70. http://dx.doi.org/10.1177/000348949410300402.

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To determine whether variation in suture placement could improve the results of the arytenoid adduction procedure, a model was developed using fresh human cadaver larynges. Three-dimensional (3-D) motion of the arytenoid was determined by utilizing computed tomographic imaging with radiopaque markers on the apex and muscular and vocal processes. By utilizing principles previously applied to the study of rigid body mechanics for the carpal, knee, and tarsal joints, rotation and translation of the arytenoid about the axial, coronal, and sagittal axes were calculated. Subglottic airflow resistance was measured before and after the procedure. Posterior glottic closure was reproducibly achieved, as determined by computed tomographic imaging and airway resistance. Conflicting reports on cricoarytenoid joint mechanics can be attributed to reliance on trigonometric analysis of two-dimensional images, which results in errors in out-of-plane motion. This paper presents a useful model for obtaining detailed anatomic information describing arytenoid 3-D motion.
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Zhang, Qizhi, and Huabei Jiang. "Three-dimensional diffuse optical imaging of hand joints: System description and phantom studies." Optics and Lasers in Engineering 43, no. 11 (2005): 1237–51. http://dx.doi.org/10.1016/j.optlaseng.2004.12.007.

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Riedl, Moritz, Gianluca Vadalà, Rocco Papalia, and Vincenco Denaro. "Three-dimensional, Scaffold-Free, Autologous Chondrocyte Transplantation: A Systematic Review." Orthopaedic Journal of Sports Medicine 8, no. 9 (2020): 232596712095115. http://dx.doi.org/10.1177/2325967120951152.

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Background: A 3-dimensional, scaffold-free, and completely autologous form of chondrocyte transplantation (ACT3D) has been developed and applied in clinical practice in the past decade to overcome disadvantages of previous-generation procedures. Purpose: To document and analyze the available literature on the results of ACT3D in the treatment of articular chondral lesions in the knee and hip joints. Study Design: Systematic review; Level of evidence, 4. Methods: All studies published in English addressing ACT3D were identified and included those that fulfilled the following criteria: (1) level 1 through 4 evidence, (2) measures of radiological or functional/clinical outcome, and (3) outcome related to cartilage lesions of the knee and hip joints. Results: A total of 10 studies were selected: 2 randomized controlled trials, 1 cohort study, and 7 case series. The studies revealed significant increases in patients’ subjective quality of life, satisfaction, pain reduction, and improvement in joint function at short- to medium-term follow-up. Magnetic resonance imaging-assisted examination and second-look arthroscopy showed a hyaline-like repair tissue with a high degree of defect filling and integration. Conclusion: ACT3D shows promising results in the therapy of articular cartilage defects in the knee as well as in the hip, but well-designed, long-term studies are lacking. ACT3D might have relevant advantages over common matrix-associated autologous chondrocyte transplantation products, but systematic evaluation and randomized controlled studies are crucial to verify the potential of this tissue-engineered approach.
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Grimm, Cindy M., Joseph J. Crisco, and David H. Laidlaw. "Fitting Manifold Surfaces to Three-Dimensional Point Clouds." Journal of Biomechanical Engineering 124, no. 1 (2001): 136–40. http://dx.doi.org/10.1115/1.1431266.

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We present a technique for fitting a smooth, locally parameterized surface model (called the manifold surface model) to unevenly scattered data describing an anatomical structure. These data are acquired from medical imaging modalities such as CT scans or MRI. The manifold surface is useful for problems which require analyzable or parametric surfaces fitted to data acquired from surfaces of arbitrary topology (e.g., entire bones). This surface modeling work is part of a larger project to model and analyze skeletal joints, in particular the complex of small bones within the wrist and hand. To demonstrate the suitability of this model we fit to several different bones in the hand, and to the same bone from multiple people.
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Dissertations / Theses on the topic "Joints Three-dimensional imaging"

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Kinney, Timothy. "A comparison of modeling techniques using the finite element method to determine local displacements in a human hip /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5987.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on April 14, 2008) Includes bibliographical references.
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Tam, Chung-yan Candy. "Study of rock joint roughness using 3D laser scanning technique." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/b40203487.

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Tam, Chung-yan Candy, and 譚頌欣. "Study of rock joint roughness using 3D laser scanning technique." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40203487.

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Agostinho, Felipe Stefan [UNESP]. "Avaliação de modelo tridimensional não invasivo da articulação coxofemoral em ovinos hígidos." Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/140254.

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Made available in DSpace on 2016-07-01T13:10:34Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-10-30. Added 1 bitstream(s) on 2016-07-01T13:14:17Z : No. of bitstreams: 1 000866843_20161101.pdf: 117782 bytes, checksum: b45064f7902b50a1b25b6afae73e799d (MD5) Bitstreams deleted on 2016-11-07T12:49:32Z: 000866843_20161101.pdf,. Added 1 bitstream(s) on 2016-11-07T12:50:07Z : No. of bitstreams: 1 000866843.pdf: 2051424 bytes, checksum: 606e4de0c5ae748f2a56babafa7d9845 (MD5)<br>Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)<br>O trabalho teve por objetivos propor e avaliar modelo cinemático tridimensional não invasivo da articulação coxofemoral de ovinos, usando sistema de coordenada articular, bem compará-lo e correlacioná-lo a dois modelos sagitais. Para tanto, foram utilizados oito ovinos hígidos de porte semelhante, não castrados, fêmeas, com idade entre 2 e 4 anos. Para o cálculo dos ângulos foram aplicados três modelos matemáticos, um sistema de coordenada articular (SCA) e dois modelos sagitais, sendo um linear (MSL) e um segmentar (MSS). Os modelos SCA, MSL e MSS permitiram a captura dos ângulos de flexão/extensão e abdução/adução. Adicionalmente o modelo SCA permitiu a captura dos ângulos de rotação interna/externa. Os ângulos máximos, mínimos e deslocamentos angulares para cada uma das variáveis foram avaliados. Na comparação entre SCA e MSL não foram observadas diferenças significativas para flexão/extensão e abdução/adução. Já nas comparações de MSL/MSS e SCA/MSS, excetuando-se o deslocamento angular em flexão/extensão entre SCA/MSS, foram observadas diferenças significativas para flexão/extensão e abdução/adução, nas demais variáveis. Os valores dos ângulos de rotação interna/externa apresentaram alta variabilidade. Não houve correlação significativa no deslocamento angular de abdução/adução entre MSL e MSS, porém todas as demais correlações entre modelos foram significativas. Foi possível concluir que os ângulos de flexão/extensão e abdução/adução adquiridos com o sistema de coordenada articular foram similares com o modelo sagital linear, mas não com o modelo sagital segmentar. Os dados de rotação interna/externa determinados pelo sistema de coordenada articular podem não ser aplicáveis<br>The aim of this study was to develop and evaluate a noninvasive three-dimensional model of the hip joint in sound sheep using a joint coordinate system, and to compare and correlate it with two sagittal models. Eight sound sheep of similar size, intact, female, aged from 2 to 4 years were used. Three models were used to angle calculations including joint coordinate system (SCA), and sagittal linear (MSL) and sagittal segmental model (MSS). The SCA, MSL and MSS models were able to capture flexion/extension and abduction/adduction angles whereas SCA model also was able to capture internal/external rotation angle. Maximum angle, minimum angle and angular displacement were calculated for all variables. Comparing SCA to MSL, significant differences were not observed. Differences were observed in all comparisons between SCA/MSS and MSL/MSS, except for flexion/extension displacement between SCA/MSS that was similar. The values of internal/external rotation angles showed high variability. The correlations were significant for both flexion/extension and abduction/adduction angles in the three models, except for abduction/adduction displacement between MSL/MSS. In conclusion, the flexion/extension and abduction/adduction angles obtained with joint coordinate system were similar to sagittal linear, but not with sagittal segmental model. The internal/external rotation angle data obtained by joint coordinate system may not be useful<br>FAPESP: 2012/12826-8
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Agostinho, Felipe Stefan. "Avaliação de modelo tridimensional não invasivo da articulação coxofemoral em ovinos hígidos." Botucatu, 2015. http://hdl.handle.net/11449/140254.

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Orientador: Sheila Canevese Rahal<br>Banca: Carlos Roberto Teixeira<br>Banca: Lidia Mitsuko Matsubara<br>Banca: Joel Mesa Hormaza<br>Banca: André Luis Selmi<br>Resumo: O trabalho teve por objetivos propor e avaliar modelo cinemático tridimensional não invasivo da articulação coxofemoral de ovinos, usando sistema de coordenada articular, bem compará-lo e correlacioná-lo a dois modelos sagitais. Para tanto, foram utilizados oito ovinos hígidos de porte semelhante, não castrados, fêmeas, com idade entre 2 e 4 anos. Para o cálculo dos ângulos foram aplicados três modelos matemáticos, um sistema de coordenada articular (SCA) e dois modelos sagitais, sendo um linear (MSL) e um segmentar (MSS). Os modelos SCA, MSL e MSS permitiram a captura dos ângulos de flexão/extensão e abdução/adução. Adicionalmente o modelo SCA permitiu a captura dos ângulos de rotação interna/externa. Os ângulos máximos, mínimos e deslocamentos angulares para cada uma das variáveis foram avaliados. Na comparação entre SCA e MSL não foram observadas diferenças significativas para flexão/extensão e abdução/adução. Já nas comparações de MSL/MSS e SCA/MSS, excetuando-se o deslocamento angular em flexão/extensão entre SCA/MSS, foram observadas diferenças significativas para flexão/extensão e abdução/adução, nas demais variáveis. Os valores dos ângulos de rotação interna/externa apresentaram alta variabilidade. Não houve correlação significativa no deslocamento angular de abdução/adução entre MSL e MSS, porém todas as demais correlações entre modelos foram significativas. Foi possível concluir que os ângulos de flexão/extensão e abdução/adução adquiridos com o sistema de coordenada articular foram similares com o modelo sagital linear, mas não com o modelo sagital segmentar. Os dados de rotação interna/externa determinados pelo sistema de coordenada articular podem não ser aplicáveis<br>Abstract: The aim of this study was to develop and evaluate a noninvasive three-dimensional model of the hip joint in sound sheep using a joint coordinate system, and to compare and correlate it with two sagittal models. Eight sound sheep of similar size, intact, female, aged from 2 to 4 years were used. Three models were used to angle calculations including joint coordinate system (SCA), and sagittal linear (MSL) and sagittal segmental model (MSS). The SCA, MSL and MSS models were able to capture flexion/extension and abduction/adduction angles whereas SCA model also was able to capture internal/external rotation angle. Maximum angle, minimum angle and angular displacement were calculated for all variables. Comparing SCA to MSL, significant differences were not observed. Differences were observed in all comparisons between SCA/MSS and MSL/MSS, except for flexion/extension displacement between SCA/MSS that was similar. The values of internal/external rotation angles showed high variability. The correlations were significant for both flexion/extension and abduction/adduction angles in the three models, except for abduction/adduction displacement between MSL/MSS. In conclusion, the flexion/extension and abduction/adduction angles obtained with joint coordinate system were similar to sagittal linear, but not with sagittal segmental model. The internal/external rotation angle data obtained by joint coordinate system may not be useful<br>Doutor
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Vesna, Njagulj. "Optimizovani protokol magnetno-rezonantne vizuelizacije zgloba kolena na aparatu jačine 3 Tesla." Phd thesis, Univerzitet u Novom Sadu, Medicinski fakultet u Novom Sadu, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=101643&source=NDLTD&language=en.

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Uvod: magnetno rezonantni imidžing (MR) je u &scaron;irokoj uporebi u dijagnostici patolo&scaron;kih poremećaja ekstremiteta. Postoji interes da se redukuje vreme trajanja snimanja tokom pregleda kako bi se povećao komfor pacijenata i redukovali problemi koji su u vezi sa klaustrofobijom i artefaktima koji nastaju pri pomeranju pacijenta tokom dugih snimanja. Trodimenzionalne (3D) izovoksel sekvence pokazale su značajne mogućnosti u redukciji vremena snimanja MR pregledom zgloba kolena bez smanjenja kvaliteta dijagnostičkih mogućnosti. Cilj: uporediti dijagnostičke mogućnosti rutinskog, 2D MR protokola, na 3.0 Tesla MR aparatu, sa 3D True fast imaging, TrueFISP, izovoksel sekvencom u detekciji hondralnih o&scaron;tećenja, ruptura prednjeg ukr&scaron;tenog ligamenta (LCA), ruptura meniskusa i abnormalnosti subhondralne kosti, u korelaciji sa artroskopijom, kao referentnim standardom. Materijal i metode: Studija je odobrena od institucionalnog etičkog odbora. Pacijenti su informisani o studiji i potpisali pristanak za uče&scaron;će u istraživanju. 76 zgloba kolena kod 76 pacijenata (34 ženskog pola; prosečne starosti 36 godina) uključeno je u prospektivnu studiju, snimljeno je standardnim 2D MR protokolom snimanja i 3D TrueFISP sekvencom u sagitalnoj ravni. Svim pacijentima je urađena artroskopija u periodu od maksimum 30 dana nakon snimanja. Dva radiologa, nezavisno jedan od drugog, su evaluirala dobijene snimke. Preciznost u detekciji hondralnih o&scaron;tećenja, ruptura LCA i meniskusa, i abnormalnosti subhondralne kostne srži je određena podudarno&scaron;ću radiolo&scaron;kih i artroskopskih nalaza kao i proverom podudaranja ove dve metode snimanja. Rezultati: prosečna senzitivnost i specifičnost 3DTrueFISP sekvence je bila 75%, 94% respektivno, u dijagnostici o&scaron;tećenja hrskavice, 97%, 97% u detekciji ruptura LCA, 65%, 89% u postavljanju dijagnoze ruptura meniskusa, a dobra podudarnost radiolo&scaron;kih nalaza je dobijena u interpretaciji o&scaron;tećenja subhondralne kosti. Standardnim 2D MR protokolom prosečna senzitivnost i specifičnost je bila 70%, 93%, respektivno, u postavljanju dijagnoze hondralnih o&scaron;tećenja, 94% i 100% u postavljanju dijagnoze rupture LCA, 65%, 88% u detekciji ruptura meniskusa. Zaključak: dijagnostičke mogućnosti upotrebom 3DTrueFISP sekvence su uporedive sa standardnim, 2D, MR protokolom u snimanju zgloba kolena.<br>Introduction: Magnetic resonance imaging (MR) is widely used to assess internal derangements of the extremities. There is an interest in decreasing examination times to improve patient comfort and reduce the problems related to claustrophobia and motion artifacts, which occur more commonly with long examinations. The three-dimensional (3D) isovoxel true FISP sequence facilitates a noticeable reduction in acquisition time for MR imaging of the knee without reducing diagnostic performance. Objective: To compare the diagnostic performance of conventional, 2D, MR protocol, at 3.0 Tesla MR, with 3D water-excitation true fast imaging with steady-state precession, TrueFISP, an isotropic resolution sequence for detecting articular cartilage defects, anterior crucial ligament tears, meniscal tears and subhondral bone changes of the knee joint, with arthroscopy as reference standard. Materials and methods: The study was institutional review board approved. Written informed consent was obtained from all patients. 76 knees of 76 patients (34 females; mean age 36 years) were prospectively examined by using a conventional 2D MR protocol and sagittal 3D TrueFISP sequence. All patients underwent arthroscopy within a maximum period of 30 days after imaging. Two blinded readers evaluated the MR images. Accuracy for detection of cartilage defects, anterior cruciate ligament and meniscal tears, and subchondral bone abnormalities interobserver agreement, and intermethod agreement were calculated. Results: Overall sensitivity and specificity of 3DTrueFISP sequence were, respectively, 75%, 94% for diagnosis cartilage defects, 97%, 97%, for a diagnosis ACL tears, 65%, 89% for diagnosis of meniscal tears and with good interobserver agreement in interpretation of subhondral bone abnormalities. The standard MR protocol had overall sensitivities and specificities 70%, 93%, respectively, for diagnosis of cartilage defects, 94% and 100% for diagnosis ACL tears and 65%, 88% for diagnosis meniscal tears. Conclusion: The diagnostic perfomance of knee MR imaging performed by using a 3DTrueFISP sequence is comparable to the diagnostic performance of the conventional, 2D, MR protocol.
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Higgins, Sean. "A Novel Method For Determining Acetabular Orientation." VCU Scholars Compass, 2012. http://scholarscompass.vcu.edu/etd/398.

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Enhanced knowledge of the acetabulum is of paramount importance in the diagnostic, planning, and execution stages of procedures and treatments targeting the hip joint. The convoluted and highly variable morphology of the structures comprising the bony pelvis make ascertaining measures of the acetabulum challenging. Furthermore, current methods for determining acetabular orientation assume symmetry between the separate halves of the pelvis by utilizing a coordinate system based on bilateral landmarks. The purpose of this study was to determine the three-dimensional orientation of the entire acetabulum. For this research, an improved programmatic method was developed for determining acetabular orientation using three-dimensional data. Accurate measures of commonly used acetabular orientation were ascertained from a large population of normal subjects. In addition, unilateral-based measures were performed using a new “hemi-pelvis coordinate system”. Significant differences between genders were observed in both the overall orientation of the acetabulum and the structural arrangement of the innominate bone.
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Filho, Edson Illipronti. "Avaliação em 3D da cabeça da mandíbula em crianças portadoras de mordida cruzada posterior unilateral por meio de tomografia computadorizada de feixe cônico." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/23/23139/tde-24052016-161108/.

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Durante o desenvolvimento da oclusão, a instalação de maloclusões podem resultar em desarmonias dento faciais de natureza e severidade diversas, podendo provocar alterações no desenvolvimento crânio facial, dentre as estruturas envolvidas as Articulações Temporo Mandibulares (ATM), podem sofrer alguma influência, dessa forma a avaliação desta região, no aspecto morfológico e funcional, constituí tema de interesse, sempre que levados em conta os aspectos funcionais da oclusão. A relação entre a forma e a função, tanto das cabeças da mandíbula, bem como o contorno da fossa mandibular com as maloclusões ainda é controversa e não está compreendida por completo, porém a literatura sobre o assunto, demonstra correlação entre a instalação de maloclusões e modificações neste sistema, mesmo que algumas alterações não sejam de ordem estatística e em amostras de indivíduos em tenra idade, as mesmas podem comprometer o desenvolvimento adequado em indivíduos adultos ou mesmo adultos jovens. Tendo como propósito nesse estudo a avaliação das cabeças da mandíbula quanto ao volume e superficíe dos lados direito e esquerdo, cruzado e não cruzado, a amostra selecionada foi de 20 indivíduos com mordida cruzada posterior unilateral, com idades entre 06 e 09 anos de idade, utilizando imagens de tomografia computadorizada por feixe cônico, imagens obtidas por um equipamento modelo i- Cat, sendo utilizado na reformatação e manipulação das imagens o programa computacional - NemoCeph 3D® versão 11.5. Nas medições propostas para esse estudo, utilizou-se o teste t pareado de Student para amostras com distribuição normal. Na observação das tabelas e seus respectivos gráficos, podemos verificar que na comparação entre os lados direito e esquerdo, e cruzado e não cruzado das cabeças da mandíbula, com relação ao volume e superfície, existem diferenças numéricas entre elas, porém não pode ser observado diferenças estatísticas significantes, nessa amostra especifica com a metodologia empregada para esse estudo. Assim foi possível concluir que nas Mordidas Cruzadas Posteriores Unilaterais as cabeças da mandíbula tanto em seu volume como em sua superfície não apresentaram diferenças estatisticamente significantes na amostra estudada.<br>During the development of occlusion, malocclusions installation may result in disharmony dento facial nature and various severity, can cause changes in craniofacial development, among the structures involved in the temporomandibular joints mandibular (ATM), may suffer some influence, thus the evaluation of this region, the morphological and functional aspect, constitutes topic of interest, when taken into account the functional aspects of occlusion. The relationship between form and function, both the heads of the jaw, as well as the outline of the mandibular fossa with malocclusion remains controversial and is not fully understood, but the literature on the subject shows correlation between the installation of malocclusions and modifications to this system, even if some changes are not of statistical order and samples from individuals at an early age, they can compromise the proper development in adults and even young adults. With the intent of this study was to evaluate the heads of the jaw as the volume and surface of the right and left sides, crossed and uncrossed, the selected sample of 20 subjects with unilateral posterior cross bite, aged from 06 to 09 years old, using computed tomography cone beam, images obtained by a device model i-Cat, being used in reformatting and manipulation of images the computer program - NemoCeph 3D® version 11.5. The proposals measurements for this study, we used the paired t-test of Student for samples with normal distribution. The observation of the tables and their graphs, we can see that the comparison between the right and left sides, and crossed and uncrossed the heads of the mandible in relation to the volume and surface, there are numerical differences between them, but can not be observed differences statistically significant, this sample specifies the methodology used for this study. Thus it was concluded that the Unilateral Posterior Crossbites the heads of the jaw in both its volume and its surface showed no statistically significant differences
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Gauci, Marc-Olivier. "Description et classification 3D des glènes arthrosiques pour une planification préopératoire 3D assistée par ordinateur : l'épaule digitale normale et arthrosique Patient-specific glenoid guides provide accuracy and reproducibility in total shoulder arthroplasty, in The Bone & Joint Journal 98-B(8), 2016 A modification to the Walch classification of the glenoid in primary glenohumeral osteoarthritis using three-dimensional imaging, in Journal of Shoulder and Elbow Surgery 25(10), October 2016 Automated three-dimensional measurement of glenoid version and inclination in arthritic shoulders, in the Journal of Bone & Joint Surgery 100(1), January 2018 Proper benefit of a three dimensional pre-operative planning software for glenoid component positioning in total shoulder arthroplasty, in International Orthopaedics 42, 2018 The reverse shoulder arthroplasty angle: a new measurement of glenoid inclination for reverse shoulder arthroplasty, in Journal of Shoulder and Elbow Surgery 28(7), July 2019." Thesis, Brest, 2019. http://www.theses.fr/2019BRES0091.

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La modélisation tridimensionnelle est devenue plus accessible et plus rapide en orthopédie et en particulier en chirurgie de l’épaule. L’analyse morphométrique qui en est issue est utilisée pour permettre une meilleure compréhension de l’omarthrose. L’objectif global de cette thèse était de valider l’application d’un logiciel de segmentation automatisée tridimensionnelle dans les étapes de prise en charge du patient. Huit études ont permis de valider les mesures automatiques calculées par le logiciel, d’améliorer la classification des omarthroses primaires puis de décrire la géométrie 3D normale et pathologique de l’épaule. Des seuils numériques précis ont pu être établis entre les différents types. Le logiciel a permis de développer et valider l’utilisation d’un angle (RSA-angle) permettant de mieux positionner l’implant glénoïdien dans les prothèses inversées d’épaule. L’utilisation des mobilités simulées en 3D démontrait l’intérêt du logiciel dans la compréhension des conflits osseux après prothèse et des faiblesses de design d’implant. Enfin, le positionnement de l’implant glénoïdien en peropératoire avec un guide patient-spécifique imprimé en 3D correspondait fidèlement à sa planification préopératoire, cependant, la planification à elle seule améliorait déjà considérablement ce positionnement. Ce travail de thèse a permis de valider les performances et l’utilisation d’un logiciel de segmentation tridimensionnel et de planification préopératoire. Son application se retrouve dans plusieurs étapes de la prise en charge d’un patient atteint d’omarthrose et devrait progressivement s’intégrer dans la pratique quotidienne des chirurgiens<br>Three-dimensional modelling has become more accessible and faster in orthopedics and especially in shoulder surgery. The subsequent morphometric analysis is used to provide a better understanding of shoulder arthritis.The overall objective of this Thesis was to validate the use of a 3D-automated segmentation software in the various steps of patients management.Eight studies allowed validating the automatic measurements calculated by the software, improving the classification of primary shoulder arthritis and then describing the normal and pathological 3D geometry of the shoulder. Accurate numerical thresholds could be established between the different types. The software developed and validated the use of an angle (RSAangle) to better position the glenoid implant in reverse shoulder arthroplasty. The use of simulated range of motion in 3D demonstrated the software’s interest in understanding bone impingements after prosthesis and implant design weaknesses.Finally, the positioning of the glenoid implant intraoperatively with a patient specific guide printed in 3D corresponded faithfully to its preoperative planning. However, planning alone already greatly improved this positioning. This Thesis made it possible to validate the performance and use of a software of three-dimensional segmentation and pre-operative planning. Its application is found in several steps of the management of a patient with shoulder arthritis and should gradually be integrated into the daily practice of surgeons
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Li, Song-Ying, and 李松穎. "Development of A Statistical Shape Model of the Human Knee for Three-Dimensional Fluoroscopic Imaging of the Joint Motion." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/ct6zwm.

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碩士<br>國立臺灣大學<br>醫學工程學研究所<br>106<br>Measuring joint kinematics via bi-plane fluoroscopic images is a common and accurate in-vivo non-invasive method. The most important part above is the subject-specific bone model reconstruction. Subject-specific bone models are required for many clinical and biomechanical applications. Currently, the most accurate bone models can be obtained from computed tomography (CT). However, it may cause some concerns such as radiation exposure. Therefore, developing an alternative method is necessary. The previous studies showed higher reconstruction error, and whether it can achieve the high precision requirement of 3D fluoroscopy measurement is very worthy of discussion. This study collected 57 models of knee joint to establish the knee joint statistical shape model (SSM), and develop a method for reconstruction of subject-specific knee joints via the fluoroscopic images. The three-stage experiments inclusive of computer simulation, in-vitro and in-vivo experiments are performed to evaluate the constructing errors and access the performance in 3D kinematics measurements. The results showed 0.69 ± 0.09 mm reconstruction error on femur models and 0.7 ± 0.07 mm on tibia models for in-vivo knee joints reconstruction. The average of the mean target registration errors of all frames relative to CT models are 0.60 ± 0.09 mm on femur models and 0.64 ± 0.11 mm on tibia models. This indicated that the method developed by this study can reached the high accuracy for knee joint bone reconstruction, and can be applied on the joint kinematics measurement via fluoroscopy.
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Books on the topic "Joints Three-dimensional imaging"

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Hayashi, Daichi, Ali Guermazi, and Frank W. Roemer. Radiography and computed tomography imaging of osteoarthritis. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199668847.003.0016.

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Osteoarthritis (OA) is the most prevalent joint disorder in the elderly worldwide and there is still no effective treatment, other than joint arthroplasty for end-stage OA, despite ongoing research efforts. Imaging is essential for assessing structural joint damage and disease progression. Radiography is the most widely used first-line imaging modality for structural OA evaluation. Its inherent limitations should be noted including lack of ability to directly visualize most OA-related pathological features in and around the joint, lack of sensitivity to longitudinal change and missing specificity of joint space narrowing, and technical difficulties regarding reproducibility of positioning of the joints in longitudinal studies. Magnetic resonance imaging (MRI) is widely applied in epidemiological studies and clinical trials. Computed tomography (CT) is an important additional tool that offers insight into high-resolution bony anatomical details and allows three-dimensional post-processing of imaging data, which is of particular importance for orthopaedic surgery planning. However, its major disadvantage is limitations in the assessment of soft tissue structures compared to MRI. CT arthrography can be useful in evaluation of focal cartilage defects or meniscal tears; however, its applicability may be limited due to its invasive nature. This chapter describes the roles and limitations of both conventional radiography and CT, including CT arthrography, in clinical practice and OA research. The emphasis is on OA of the knee, but other joints are also mentioned where appropriate.
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F, Aichner, and European Magnetic Resonance Forum, eds. Three-dimensional magnetic resonance imaging: An integrated clinical up-date of 3D-imaging and 3D-postprocessing : proceedings of a joint meeting in Obergurgl, Austria, 23-27 March 1992. Blackwell Scientific Publications, 1994.

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Aichner, F. Three-Dimensional Magnetic Resonance Imaging: An Integrated Clinical Up-Date of 3D-Imaging and 3D-Postprocessing : Proceedings of a Joint Meeting in. Blackwell Science Inc, 1995.

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Book chapters on the topic "Joints Three-dimensional imaging"

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Brady, Michael, and Alan K. Bowman. "Introduction." In Images and Artefacts of the Ancient World. British Academy, 2005. http://dx.doi.org/10.5871/bacad/9780197262962.003.0001.

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This book is a result of the joint research project on the image enhancement of ancient documents. It brings together researches and projects in such way techniques and results could be discussed in a way which would capitalize the possibilities of cross-fertilization, of generalizing techniques from a category of object or problem to another, and encourage people to think laterally and in interdisciplinary way on advancing techniques of imaging and visual understanding of objects under study. It aims to instil awareness of the extent to which scientific contributions are thinking about subjectivity of interpretation, visual cognition, and the need to improve methods of presenting evidence in ways which feed their scientific thinking and encourage genuine innovation of approach to developing methods of image enhancement. The chapters of this volume offer a wide range of treatment of artefacts and of techniques, many of which could be applied to a broader range of materials. While this volume did not include all scientific techniques and artefacts, it includes all artefacts which require three-dimensional (3D) imaging techniques. In this volume, the main themes are: imaging documents, laser imaging, 3D reconstructions, reconstruction of faces and depth perception from relief.
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Conference papers on the topic "Joints Three-dimensional imaging"

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Siebert, Markus, Karl-Hans Englmeier, Ruediger von Eisenhart-Rothe, et al. "System for three-dimensional biomechanical analysis of joints." In Medical Imaging 2002, edited by Anne V. Clough and Chin-Tu Chen. SPIE, 2002. http://dx.doi.org/10.1117/12.463617.

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Udupa, Jayaram K., Bruce E. Hirsch, Supun Samarasekera, et al. "Analysis of kinematics of joints via three-dimensional imaging." In Medical Imaging 1993, edited by Yongmin Kim. SPIE, 1993. http://dx.doi.org/10.1117/12.146962.

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Udupa, Hirsch, Samarasekera, and Goncalves. "Kinematics of Joints via Three-Dimensional Mr Imaging." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.590447.

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Udupa, J. K., B. E. Hirsch, S. Samarasekera, and R. J. Goncalves. "Kinematics of joints via three-dimensional MR imaging." In 1992 14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1992. http://dx.doi.org/10.1109/iembs.1992.5762167.

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Zhang, Qizhi, Yong Xu, and Huabei Jiang. "Three-dimensional diffuse optical imaging of joints: System description and phantom studies." In Biomedical Topical Meeting. OSA, 2004. http://dx.doi.org/10.1364/bio.2004.thf32.

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Jiang, Huabei, Yong Xu, Nicusor Iftimia, L. Lyndon Key, and Marcy B. Bolster. "Three-dimensional imaging of in vivo bones and joints with diffuse optical tomography." In Biomedical Topical Meeting. OSA, 2002. http://dx.doi.org/10.1364/bio.2002.tue4.

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Morozumi, Wataru, Norio Tagawa, Kan Okubo, and Hiromichi Fujie. "Detection and motion analysis of knee joints in three-dimensional point cloud data measured using a depth camera." In International Workshop on Advanced Imaging Technologies 2020 (IWAIT 2020), edited by Phooi Yee Lau and Mohammad Shobri. SPIE, 2020. http://dx.doi.org/10.1117/12.2566954.

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Yuan, Zhen, Qizhi Zhang, Eric Sobel, and Huabei Jiang. "Three-dimensional optical tomography imaging of finger joints based on simplified spherical harmonics approximated-radiative transport model." In SPIE BiOS: Biomedical Optics, edited by Bruce J. Tromberg, Arjun G. Yodh, Mamoru Tamura, Eva M. Sevick-Muraca, and Robert R. Alfano. SPIE, 2009. http://dx.doi.org/10.1117/12.809577.

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Yuan, Zhen, Qizhi Zhang, Eric S. Sobel, and Huabei Jiang. "A clinical investigation on x-ray guided three-dimensional diffuse optical imaging of osteoarthritis in the finger joints." In Biomedical Optics. OSA, 2010. http://dx.doi.org/10.1364/biomed.2010.bsud67.

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Yuan, Zhen, Huizhu Jiang, Qizhi Zhang, Eric S. Sobel, and Huabei Jiang. "Tomographic x-ray guided three-dimensional diffuse optical imaging of osteoarthritis in the finger joints: a clinical study." In SPIE BiOS: Biomedical Optics, edited by Andreas Mandelis. SPIE, 2009. http://dx.doi.org/10.1117/12.809466.

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