Journal of Applied Clinical Medical Physics

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* Dữ liệu chỉ mang tính chất tham khảo

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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
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
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
Investigating split‐filter dual‐energy CT for improving liver tumor visibility for radiation therapy
Journal of Applied Clinical Medical Physics - Tập 21 Số 8 - Trang 249-255 - 2020
Lianna D. DiMaso, J. Snow, M Lawless, M. Bassetti, Larry A. DeWerd, Jessie Y. Huang
AbstractPurposeAccurate liver tumor delineation is crucial for radiation therapy, but liver tumor volumes are difficult to visualize with conventional single‐energy CT. This work investigates the use of split‐filter dual‐energy CT (DECT) for liver tumor visibility by quantifying contrast and contrast‐to‐noise ratio (CNR)....... 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
A TCP‐NTCP estimation module using DVHs and known radiobiological models and parameter sets
Journal of Applied Clinical Medical Physics - Tập 5 Số 1 - Trang 50-63 - 2004
Brad Warkentin, Pavel Stavrev, N Stavreva, Colin Field, B. G. Fallone
Radiotherapy treatment plan evaluation relies on an implicit estimation of the tumor control probability (TCP) and normal tissue complication probability (NTCP) arising from a given dose distribution. A potential application of radiobiological modeling to radiotherapy is the ranking of treatment plans via a more explicit determination of TCP and NTCP values. Although the limited predictive...... 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
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
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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