Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Raj K, Mitra"'
Autor:
Poonam, Yadav, Sha X, Chang, Chee-Wai, Cheng, Colleen M, DesRosiers, Raj K, Mitra, Indra J, Das
Publikováno v:
Physica Medica. 95:148-155
A multi-institutional investigation for dosimetric evaluation of high-Z hip prosthetic device in photon beam.A bilateral hip prosthetic case was chosen. An in-house phantom was built to replicate the human pelvis with two different prostheses. Dosime
Publikováno v:
Journal of Clinical Medicine
Volume 12
Issue 3
Pages: 906
Volume 12
Issue 3
Pages: 906
Dose-calculation algorithms are critical for radiation treatment outcomes that vary among treatment planning systems (TPS). Modern algorithms use sophisticated radiation transport calculation with detailed three-dimensional beam modeling to provide a
Autor:
John P. Gibbons, X. Allen Li, Anders Ahnesjö, Chee-Wai Cheng, Raj K. Mitra, Jessica Lowenstein, Ronald J. Watts, Timothy C. Zhu, Indra J. Das, William E. Simon
Publikováno v:
Medical Physics. 35:4186-4215
For commissioning a linear accelerator for clinical use, medical physicists are faced with many challenges including the need for precision, a variety of testing methods, data validation, the lack of standards, and time constraints. Since commissioni
Autor:
Indra J. Das, Zelig Tochner, Lawrence J. Solin, Chee-Wai Cheng, Alireza Kassaee, Raj K. Mitra
Publikováno v:
Medical Physics. 31:3213-3221
High density and atomic number (Z) materials used in various prostheses, eye shielding, and beam modifiers produce dose enhancements on the backscatter side in electron beams and is well documented. However, on the transmission side the dose perturba
Autor:
Eric M. Horwitz, Wayne H. Pinover, Raj K. Mitra, Gerald E. Hanks, Alexandra L. Hanlon, D.B. Chism
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 55:71-77
Purpose : To describe the frequency and magnitude of late GI and GU morbidity in prostate cancer patients treated to high dose levels with a simple three-dimensional conformal technique. Methods and Materials : A total of 156 intermediate- and high-r
Autor:
Eric M. Horwitz, Gerald E. Hanks, Alexandra L. Hanlon, Raj K. Mitra, T Richardson, Elizabeth Palacio, Gary M. Freedman, Benjamin Movsas, Dennis Mah, Bart Milestone
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 54:568-575
Purpose: To quantify the three-dimensional intrafractional prostate motion over typical treatment time intervals with cine-magnetic resonance imaging (cine MRI) studies. Methods and Materials: Forty-two patients with prostate cancer were scanned supi
Autor:
Pasi P Väisänen, Gary M. Freedman, Dennis Mah, Gerald E. Hanks, Bart Milestone, Eric M. Horwitz, Michael C. Steckner, Himu Shukla, Raj K. Mitra, Alexandra L. Hanlon, Benjamin Movsas
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 53:757-765
To quantify the dosimetric consequences of external patient contour distortions produced on low-field and high-field MRIs for external beam radiation of prostate cancer.A linearity phantom consisting of a grid filled with contrast material was scanne
Autor:
Gary M. Freedman, Benjamin Movsas, Rajesh V. Iyer, Alexandra L. Hanlon, Wayne H. Pinover, Raj K. Mitra, Gerald E. Hanks, Dennis Mah, Eric M. Horwitz
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 50:947-951
Purpose: Urethrography is commonly used to aid in definition of the prostate apex during CT simulation for prostate cancer. If the position of the prostate were altered by the urethrogram itself, then systematic error could be introduced into the pat
Autor:
Indra J, Das, Chee-Wai, Cheng, Raj K, Mitra, Alireza, Kassaee, Zelig, Tochner, Lawrence J, Solin
Publikováno v:
Medical physics. 31(12)
High density and atomic number (Z) materials used in various prostheses, eye shielding, and beam modifiers produce dose enhancements on the backscatter side in electron beams and is well documented. However, on the transmission side the dose perturba
Autor:
Norman G. Rosenblum, Joseph M. Kaminski, Penny R. Anderson, Mitchell I. Edelson, Aaron C. Han M.D., Raj K. Mitra
Publikováno v:
Gynecologic oncology. 88(3)
Background Primary vaginal small cell carcinoma is extremely rare, with a total number reported in English-language journals to date of 23. Most patients die of the disease within 2 years of diagnosis from metastatic disease. Case A 69-year-old woman