Zobrazeno 1 - 10
of 34
pro vyhledávání: '"V Chanyavanich"'
Publikováno v:
International Journal of Radiation Oncology*Biology*Physics. 93:540-546
To determine the dosimetric effects of rotational errors on target coverage using volumetric modulated arc therapy (VMAT) for multitarget stereotactic radiosurgery (SRS).This retrospective study included 50 SRS cases, each with 2 intracranial plannin
Publikováno v:
Medical physics. 39(6Part19)
Purpose: In prostate IMRTtreatment planning, the variation in patient anatomy makes it difficult to estimate a priori the potentially achievable extent of dose reduction possible to the rectum and bladder. We developed a mutual information‐based fr
Publikováno v:
Medical Physics. 38:2515-2522
The goal of intensity-modulated radiation therapy (IMRT) treatment plan optimization is to produce a cumulative dose distribution that satisfies both the dose prescription and the normal tissue dose constraints. The typical manual treatment planning
Publikováno v:
Medical Physics. 43:3809-3809
Purpose: To validate a knowledge-based algorithm for prostate LDR brachytherapy treatment planning. Methods: A dataset of 100 cases was compiled from an active prostate seed implant service. Cases were randomized into 10 subsets. For each subset, the
Publikováno v:
Medical Physics. 42:3536-3536
Purpose: To create a knowledge-based algorithm for prostate LDR brachytherapy treatment planning that standardizes plan quality using seed arrangements tailored to individual physician preferences while being fast enough for real-time planning. Metho
Publikováno v:
Medical Physics. 40:363-364
Purpose: To investigate the dosimetric and localization effects of one‐versus two‐isocenter SRS. Methods: A library of 50 retrospective patient plans was compiled for cases of two brain lesions. One‐and two‐isocenter plans were generated. One
Publikováno v:
Medical Physics. 41:545-545
Purpose: To characterize the risks of compromised coverage in single-isocenter multiple-lesion VMAT SRS. Methods: Fifty patients were selected retrospectively from our SRS program. Each patient had two lesions treated to ≥ 21 Gy. Single-isocenter V
Autor:
B, Chawengchao, S, Petmitr, M, Ponglikitmongkol, V, Chanyavanich, T, Sangruji, V, Theerapuncharoen, K, Hayashi, W, Thangnipon
Publikováno v:
Anticancer research. 21(4A)
Using polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) with additional Klenow treatment and direct sequencing mutations in the p53 tumor suppressor gene were analyzed from 21 cases of human astrocytomas. Three cases had p5
Publikováno v:
Medical Physics. 39:3800-3800
Purpose: The surface and buildup dose is known to be greater for flattening‐filter‐free (FFF) beams as compared to flattened beams. We compare the effect of this difference in the dose buildup region between the two beam modes, in the context of
Publikováno v:
Medical Physics. 38:3687-3687
Purpose: To evaluate the feasibility of using a site‐specific database of prior plans to generate new prostate IMRT plans for cases drawn from an outside institution. Methods: The assembled database consists of 250 retrospective prostate IMRT treat