Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Joshua R. Levy"'
Autor:
D Goodenough, Vinay Duddalwar, Joshua R. Levy, Steven Cen, Bhushan Desai, Darryl Hwang, Bino Varghese, Xiaomeng Lei
Publikováno v:
Journal of Applied Clinical Medical Physics
Objective The objective of this study was to evaluate the robustness and reproducibility of computed tomography‐based texture analysis (CTTA) metrics extracted from CT images of a customized texture phantom built for assessing the association of te
Publikováno v:
Journal of Applied Clinical Medical Physics
Comprehensive characterization of geometric distortions for MRI simulators and MRI‐guided treatment delivery systems is typically performed with large phantoms that are costly and unwieldy to handle. Here we propose an easily implementable methodol
Autor:
Derek Liu, Bino Varghese, D Goodenough, Bhushan Desai, Vinay Duddalwar, Marielena Rivas, Christopher Lau, Darryl Hwang, Steven Cen, Joshua R. Levy
Publikováno v:
Journal of Applied Clinical Medical Physics
Objective To determine the intra‐, inter‐ and test‐retest variability of CT‐based texture analysis (CTTA) metrics. Materials and methods In this study, we conducted a series of CT imaging experiments using a texture phantom to evaluate the pe
Autor:
Ricardo Scott Avila, Brian Helba, Keith C. Allberg, Xiaoxiao Liu, Kristen A. Wangerin, Darrin Byrd, Karthik Krishnan, Joshua R. Levy, Paul E. Kinahan
Publikováno v:
Tomography : a journal for imaging research
Tomography; Volume 4; Issue 1; Pages: 33-41
Tomography
Volume 4
Issue 1
Pages 33-41
Tomography; Volume 4; Issue 1; Pages: 33-41
Tomography
Volume 4
Issue 1
Pages 33-41
A challenge in multicenter trials that use quantitative positron emission tomography (PET) imaging is the often unknown variability in PET image values, typically measured as standardized uptake values, introduced by intersite differences in global a
Autor:
Joshua R. Levy, Michael S. Gossman
Publikováno v:
Journal of Medical Devices. 8
This research examines the accuracy of The Phantom Laboratory RSVP Phantom™ II with a jaw system that replicates patient biting. The research study examines the positional reproducibility as applicable for radiation oncology patients receiving ster
Publikováno v:
Computerized medical imaging and graphics : the official journal of the Computerized Medical Imaging Society. 22(3)
Purpose : This paper reports on the development of a new phantom for spiral CT. The phantom meets the increased demands on phantom z -axis uniformity in order that objects from the CT slice, immediately above and below the CT slice of interest, do no