Zobrazeno 1 - 10
of 82
pro vyhledávání: '"John Yorkston"'
Autor:
Shalini Subramanian, Wojciech Zbijewski, Jeffrey H. Siewerdsen, Michael Brehler, John Yorkston, Ryan Breighner, F. J. Quevedo Gonzalez, John A. Carrino, Timothy M. Wright, Qian Cao
Publikováno v:
Medical Imaging: Biomedical Applications in Molecular, Structural, and Functional Imaging
Purpose: A high-resolution cone-beam CT (CBCT) system for extremity imaging has been developed using a custom complementary metal–oxide–semiconductor (CMOS) x-ray detector. The system has spatial resolution capability beyond that of recently intr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5c07b74e6a9386ac61523990d289c0c7
https://pubmed.ncbi.nlm.nih.gov/31814656
https://pubmed.ncbi.nlm.nih.gov/31814656
Autor:
Jeffrey H. Siewerdsen, Qian Cao, John Yorkston, Alejandro Sisniega, Wojciech Zbijewski, Jospeh W. Stayman
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 10948
Purpose: We develop and validate a model-based framework for artifact correction and image reconstruction to enable application of Cone-Beam CT (CBCT) in quantitative assessment of bone mineral density (BMD). Compared to conventional quantitative CT,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::15a9b4ba9d6603ef396e9c63cae3328d
https://pubmed.ncbi.nlm.nih.gov/31384094
https://pubmed.ncbi.nlm.nih.gov/31384094
Autor:
Wojciech Zbijewski, M. M. Shiraz Bhruwani, Michael Brehler, Steven Tilley, Alejandro Sisniega, Qian Cao, Jeffrey H. Siewerdsen, Joseph Webster Stayman, John Yorkston
Publikováno v:
Proceedings of SPIE--the International Society for Optical Engineering. 10573
Purpose: A prototype high-resolution extremity cone-beam CT (CBCT) system based on a CMOS detector was developed to support quantitative in vivo assessment of bone microarchitecture. We compare the performance of CMOS CBCT to an amorphous silicon (a-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fa6c3dcc396010d77f86b3e08bb6263
https://pubmed.ncbi.nlm.nih.gov/31346302
https://pubmed.ncbi.nlm.nih.gov/31346302
Autor:
Qian Cao, Carol D. Morris, Greg Osgood, Michael Brehler, Wojciech Zbijewski, Shadpour Demehri, Kendall F. Moseley, Jeffrey H. Siewerdsen, John Yorkston
Publikováno v:
Medical Imaging: Biomedical Applications in Molecular, Structural, and Functional Imaging
Purpose: In-vivo evaluation of bone microarchitecture remains challenging because of limited resolution of conventional orthopaedic imaging modalities. We investigate the performance of flat-panel detector extremity Cone-Beam CT (CBCT) in quantitativ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84437141696d70a71fe2b617b06a4788
https://pubmed.ncbi.nlm.nih.gov/31337926
https://pubmed.ncbi.nlm.nih.gov/31337926
Autor:
Wojciech Zbijewski, Qian Cao, Jeffrey H. Siewerdsen, J. Webster Stayman, John Yorkston, Alejandro Sisniega
Publikováno v:
Physics in Medicine and Biology. 61:7263-7281
Application of model-based iterative reconstruction (MBIR) to high resolution cone-beam CT (CBCT) is computationally challenging because of the very fine discretization (voxel size 100 µm) of the reconstructed volume. Moreover, standard MBIR techniq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::622c946983da7d585826cfc78eadfceb
https://doi.org/10.1088/0031-9155/61/20/7263
https://doi.org/10.1088/0031-9155/61/20/7263
Autor:
Gaurav K. Thawait, Grace J. Gang, Nathan J. Packard, John Yorkston, Shadpour Demehri, Jeffrey H. Siewerdsen, Mahadevappa Mahesh, Wojciech Zbijewski
Publikováno v:
Medical physics. 45(1)
Purpose This work investigates the dose characteristics and image quality of a multi-source cone-beam CT scanner dedicated for extremity imaging. Methods The scanner has an x-ray source with three separate anode-cathode units evenly distributed along
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5cbbed47e45ab5da9a03bf312edaa82
https://pubmed.ncbi.nlm.nih.gov/29121409
https://pubmed.ncbi.nlm.nih.gov/29121409
Autor:
Michael Brehler, Alejandro Sisniega, Qian Cao, Jeffrey H. Siewerdsen, Wojciech Zbijewski, J. Webster Stayman, John Yorkston
Publikováno v:
Medical physics. 45(1)
Purpose Quantitative assessment of trabecular bone microarchitecture in extremity cone-beam CT (CBCT) would benefit from the high spatial resolution, low electronic noise, and fast scan time provided by complementary metal-oxide semiconductor (CMOS)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc7283394d40a697b42502530672a9e1
https://pubmed.ncbi.nlm.nih.gov/29095489
https://pubmed.ncbi.nlm.nih.gov/29095489
Autor:
Wojciech Zbijewski, Abdullah Al Muhit, R. Senn, Gaurav K. Thawait, Jeffrey H. Siewerdsen, Joseph Webster Stayman, John A. Carrino, D. Yang, D H Foos, N. Packard, John Yorkston
Publikováno v:
Medical physics. 39(6Part28)
Purpose: To assess the diagnostic performance of a prototype cone‐beam CT(CBCT) scanner developed for musculoskeletal extremity imaging. Studies involved controlled observer studies conducted subsequent to rigorous technical assessment as well as p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ff6259e4f179c10bd835ee5025df8dc
https://pubmed.ncbi.nlm.nih.gov/28519605
https://pubmed.ncbi.nlm.nih.gov/28519605
Autor:
John Yorkston, Nima Hafezi-Nejad, Wojciech Zbijewski, Adam C. Shaner, Delaram Shakoor, Greg Osgood, Jeffrey H. Siewerdsen, Shadpour Demehri, Gaurav K. Thawait
To evaluate image quality and interobserver reliability of a novel cone-beam CT (CBCT) scanner in comparison with plain radiography for assessment of fracture healing in the presence of metal hardware.In this prospective institutional review board-ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b3c9fd2625fb9ed2616266737294b9b5
https://europepmc.org/articles/PMC5605098/
https://europepmc.org/articles/PMC5605098/
Autor:
Joseph Webster Stayman, Alejandro Sisniega, John Yorkston, Jeffrey H. Siewerdsen, Wojciech Zbijewski
Publikováno v:
Physics in medicine and biology. 62(9)
Cone-beam CT (CBCT) for musculoskeletal imaging would benefit from a method to reduce the effects of involuntary patient motion. In particular, the continuing improvement in spatial resolution of CBCT may enable tasks such as quantitative assessment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1a81b4a6901e95563595b0d93fa01c8a
https://pubmed.ncbi.nlm.nih.gov/28327471
https://pubmed.ncbi.nlm.nih.gov/28327471