Journal of Applied Clinical Medical Physics

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CT slice index and thickness: Impact on organ contouring in radiation treatment planning for prostate cancer
Journal of Applied Clinical Medical Physics - Tập 4 Số 4 - Trang 365 - 2003
E. Berthelet
Stability of serrated gold coil markers in prostate localization
Journal of Applied Clinical Medical Physics - Tập 12 Số 3 - Trang 161-168 - 2011
Larry L. Gates, David J. Gladstone, Mohit S. Kasibhatla, John F. Marshall, John D. Seigne, Eugen B. Hug, Alan C. Hartford
We investigated the stability of serrated gold coils (Visicoil) implanted within the prostate glands of patients undergoing definitive external beam radiotherapy for prostate cancer. Radiopaque Visicoils of diameter 0.75 mm and median length 3 cm (range 2–4 cm) were implanted, one into each lobe of the prostate glands of 30 patients planned for external beam treatment. The coils were visua...... hiện toàn bộ
Observed intercamera variability in clinically relevant performance characteristics for Siemens Symbia gamma cameras
Journal of Applied Clinical Medical Physics - Tập 7 Số 4 - Trang 74-80 - 2006
S. Cheenu Kappadath, William D. Erwin, Richard E. Wendt
We conducted an evaluation of the intercamera (i.e., between cameras) variability in clinically relevant performance characteristics for Symbia gamma cameras (Siemens Medical Solutions, Malvern, PA) based on measurements made using nine separate systems. The significance of the observed intercamera variability was determined by comparing it to the intracamera (i.e., within a single camera)...... hiện toàn bộ
Comparison of four commercial devices for RapidArc and sliding window IMRT QA
Journal of Applied Clinical Medical Physics - Tập 12 Số 2 - Trang 338-349 - 2011
Varatharaj Chandraraj, S Stathakis, Ravikumar Manickam, C Esquivel, Sanjay S. Supe, N Papanikolaou
For intensity‐modulated radiation therapy, evaluation of the measured dose against the treatment planning calculated dose is essential in the context of patient‐specific quality assurance. The complexity of volumetric arc radiotherapy delivery attributed to its dynamic and synchronization nature require new methods and potentially new tools for the quality assurance of such techniques. In ...... hiện toàn bộ
Applying the equivalent uniform dose formulation based on the linear-quadratic model to inhomogeneous tumor dose distributions: Caution for analyzing and reporting
Journal of Applied Clinical Medical Physics - Tập 1 Số 4 - Trang 126 - 2000
John E. McGary
Volume assessment accuracy in computed tomography: a phantom study
Journal of Applied Clinical Medical Physics - Tập 11 Số 2 - Trang 168-180 - 2010
Nicolas D. Prionas, Shonket Ray, John M. Boone
There is a broad push in the cancer imaging community to eventually replace linear tumor measurements with three‐dimensional evaluation of tumor volume. To evaluate the potential accuracy of volume measurement in tumors by CT, a gelatin phantom consisting of 55 polymethylmethacrylate (PMMA) spheres spanning diameters from 1.6 mm to 25.4 mm was fabricated and scanned using thin slice (0.625...... hiện toàn bộ
Initial testing of a pixelated silicon detector prototype in proton therapy
Journal of Applied Clinical Medical Physics - Tập 18 Số 5 - Trang 315-324 - 2017
Andrew Wroe, Grant McAuley, Anthony V. Teran, Jeannie Hsiu Ding Wong, Marco Petasecca, Michael Lerch, James M. Slater, Anatoly Rosenfeld
AbstractAs technology continues to develop, external beam radiation therapy is being employed, with increased conformity, to treat smaller targets. As this occurs, the dosimetry methods and tools employed to quantify these fields for treatment also have to evolve to provide increased spatial resolution. The team at the University of Wollongong has developed a pixel...... hiện toàn bộ
Evaluation of the dosimetric properties of a diode detector for small field proton radiosurgery
Journal of Applied Clinical Medical Physics - Tập 16 Số 6 - Trang 51-64 - 2015
Grant McAuley, Anthony V. Teran, Jerry D. Slater, James M. Slater, Andrew Wroe
The small fields and sharp gradients typically encountered in proton radiosurgery require high spatial resolution dosimetric measurements, especially below 1–2 cm diameters. Radiochromic film provides high resolution, but requires postprocessing and special handling. Promising alternatives are diode detectors with small sensitive volumes (SV) that are capable of high resolution and real‐ti...... hiện toàn bộ
Accuracy of automatic couch corrections with on‐line volumetric imaging*
Journal of Applied Clinical Medical Physics - Tập 10 Số 4 - Trang 106-116 - 2009
Winnie Li, D Moseley, Tony Manfredi, David A. Jaffray
The purpose of this study was to characterize automatic remote couch adjustment and to assess the accuracy of automatic couch corrections following localization with cone‐beam CT (CBCT). Automatic couch movement was evaluated through passive reflector markers placed on a phantom, tracked with an optical tracking system (OTS). Repeated couch movements in the lateral, cranial/caudal, and ver...... hiện toàn bộ
Investigating a novel split‐filter dual‐energy CT technique for improving pancreas tumor visibility for radiation therapy
Journal of Applied Clinical Medical Physics - Tập 19 Số 5 - Trang 676-683 - 2018
Lianna D. Di Maso, Jessie Y. Huang, M. Bassetti, Larry A. DeWerd, J. Snow
AbstractPurposeTumor delineation using conventional CT images can be a challenge for pancreatic adenocarcinoma where contrast between the tumor and surrounding healthy tissue is low. This work investigates the ability of a split‐filter dual‐energy ... hiện toàn bộ
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