Results 41 to 50 of about 25,193 (285)

CyberKnife Xsight versus fiducial-based target-tracking: a novel 3D dosimetric comparison in a dynamic phantom

Radiation Oncology, 2022
Background The CyberKnife Xsight lung-tracking system (XLTS) provides an alternative to fiducial-based target-tracking systems (FTTS) for non-small-cell lung cancer (NSCLC) patients without invasive fiducial insertion procedures.
Thomas J. Klein, Suki Gill, Martin A. Ebert, Garry Grogan, Warwick Smith, Zaid Alkhatib, John Geraghty, Alison J. D. Scott, Alan Brown, Pejman Rowshanfarzad   +9 more
doaj   +1 more source

EP-1175: The matter of IMRT plan QA using gamma pass rate

Radiotherapy and Oncology, 2013
n ...
Kawamorita, R., Okada, W., Nakahara, R., Kishimoto, S., Ishii, K., Nakajima, T., Nishimura, Y.   +6 more
openaire   +1 more source

Evaluation of myQA SRS detector for the stereotactic treatment plan verification [PDF]

Ядерна фізика та енергетика
Modern radiotherapy techniques involve the use of high-modulated radiation fields. Intensity Modulated Radiation Therapy and Volumetric Modulated Arc Therapy require careful quality control to ensure that the planned dose distributions can be delivered ...
K. Vilchynska, O. Bezshyyko, V. Vashchyshyn, L. Golinka-Bezshyyko, R. Zelinskyi   +4 more
doaj   +1 more source

The Impact of Temporal Changes in Irradiated nMAG Polymer Gels on Their Applicability in Small Field Dosimetry in Radiotherapy

Gels, 2022
As advanced radiotherapy techniques progress to deliver a high absorbed dose to the target volume while minimizing the dose to normal tissues using intensity-modulated beams, arcs or stereotactic radiosurgery, new challenges occur to assure that the high
Aurimas Krauleidis, Diana Adliene, Zivile Rutkuniene   +2 more
doaj   +1 more source

Variations of gamma passing rates at the diode level with various target sizes.

, 2015
The gamma passing rates were calculated with both the 3%/3 mm criterion (lower graph) and the 2%/2 mm criterion (upper graph) in absolute doses with a threshold of 5%. The gamma passing rate decreased as the target size increased.
Hun-Joo Shin (648272), Jin Ho Song (712100), Seok Hyun Son (648274), Chul Seung Kay (648273)   +3 more
core   +1 more source

Two years experience with quality assurance protocol for patient related Rapid Arc treatment plan verification using a two dimensional ionization chamber array

Radiation Oncology, 2011
Purpose To verify the dose distribution and number of monitor units (MU) for dynamic treatment techniques like volumetric modulated single arc radiation therapy - Rapid Arc - each patient treatment plan has to be verified prior to the first treatment ...
Vorwerk Hilke, Wagner Daniela
doaj   +1 more source

Verification of an independent dose calculation method for portal-specific QA of proton and carbon ion beams

Radiation Medicine and Protection, 2022
Objective: To verify the accuracy of an independent dose calculation method, as incorporated into an in-house developed treatment planning system (TPS), for performing quality assurance of dose distributions delivered to a water phantom planned by a ...
Michael F. Moyers, Qianxia Wang, Yu Deng, Hongliang Chen, Zhi Chen, Xiaoli Liu, Nicki Schlegel, Jie Li, Zhuangming Shen, James Lin, Pablo Yepes   +10 more
doaj   +1 more source

Guaranteed performance of individual control chart used in gamma passing rate-based patient-specific quality assurance

Physica Medica, 2023
To assess the effect of sampling variability on the performance of individual charts (I-charts) for PSQA and provide a robust and reliable method for unknown PSQA processes.A total of 1327 pretreatment PSQAs were analyzed. Different datasets with samples in the range of 20-1000 were used to estimate the lower control limit (LCL). Based on the iterative
Guangjun Li, Qing Xiao, Guyu Dai, Qiang Wang, Long Bai, Xiangbin Zhang, Xiangyu Zhang, Lian Duan, Renming Zhong, Sen Bai   +9 more
openaire   +2 more sources

Average gamma passing rate and standard deviation of various irradiation modes and FS at different post-irradiation periods with DTA = 2 mm/DD = 2%.

, 2019
Average gamma passing rate and standard deviation of various irradiation modes and FS at different post-irradiation periods with DTA = 2 mm/DD = 2%.
Yuan-Chun Lai (6387746), Chun-Hsu Yao (483046), Chia-Chi Lin (1849147), Yuan-Jen Chang (302999), Tung-Hao Chang (6387743), Chin-Hsing Chen (2405116)   +5 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source