Results 41 to 50 of about 12,318 (173)

Quality assurance procedures based on dosimetric, gamma analysis as a fast reliable tool for commissioning brachytherapy treatment planning systems

Radiology and Oncology, 2017
Fast and easily repeatable methods for commissioning procedures for brachytherapy (BT) treatment planning systems (TPS) are needed. Radiochromic film dosimetry with gamma analysis is widely used in external beam quality assurance (QA) procedures and ...
Zwierzchowski Grzegorz, Bieleda Grzegorz, Skowronek Janusz   +2 more
doaj   +1 more source

Dosimetric evidence confirms computational model for magnetic field induced dose distortions of therapeutic proton beams

, 2017
Given the sensitivity of proton therapy to anatomical variations, this cancer treatment modality is expected to benefit greatly from integration with magnetic resonance (MR) imaging.
Bussmann, Michael, Gantz, Sebastian, Hoffmann, Aswin L, Lühr, Armin, Oborn, Bradley M, Schellhammer, Sonja M   +5 more
core   +1 more source

Comparison of Different Dosimetric Indices for Volumetric Arc Modulated Treatment Planning Using 2 Different Treatment Planning Systems: A Feasibility Study for Total Body Irradiation

Asian Pacific Journal of Cancer Care, 2023
Objective: To compare two different treatment planning systems (TPSs) for plan quality and to check the feasibility of VMAT TBI on the Elekta linear accelerator ‘Versa HD’.
Reena Kumari, Budhi Singh Yadav, Pankaj Kumar   +2 more
doaj   +1 more source

Experimental verification of acuros XB in the presence of lung-equivalent heterogeneities [PDF]

, 2017
Acuros XB (AXB) is a deterministic algorithm that directly accounts for the effects of heterogeneities and improves the accuracy of photon dose calculations in radiotherapy. Nevertheless, the accuracy of AXB inside lung has not been yet fully examined by
Agramunt Chaler, Sebastià, Bueno Vizcarra, Marta, Duch Guillen, María Amor, Jurado Bruggeman, Diego, Muñoz Montplet, Carles   +4 more
core   +2 more sources

Dosimetric verification of the Elekta motorized wedge

Archives of Advances in Biosciences, 2018
Elekta linear accelerator is equipped with a motorized wedge which produces the wedge angles of less than 60° continuously by the combination of a wedged field and an open field with appropriate proportions. The effective wedge angles for various field sizes and depths were calculated using an analytical formula and a 2-D array detector data.
Behjati, Mahdie, Sohrabpour, Mostafa, Shirmardi, Seyed Pezhman, Bouzarjomehri, Fathollah, Mosleh Shirazi, Mohammad Amin   +4 more
openaire   +1 more source

Dosimetric verification of micro‐MLC based intensity modulated radiation therapy [PDF]

Journal of Applied Clinical Medical Physics, 2008
A methodology for the dosimetric verification of micro‐multileaf collimator (mMLC) based intensity modulated radiation therapy (IMRT) plans intended for stereotactic applications is described. The method is similar to that of conventional IMRT patient‐specific quality assurance (QA) with some notable exceptions, particularly, mechanical tests that ...
Basran, Parminder, Yeboah, Collins
openaire   +2 more sources

Dosimetric verification of gated delivery of electron beams using a 2D ion chamber array

Journal of Medical Physics, 2015
The purpose of this study was to compare the dosimetric characteristics; such as beam output, symmetry and flatness between gated and non-gated electron beams.
S A Yoganathan, K J Maria Das, D Gowtham Raj, Shaleen Kumar   +3 more
doaj   +1 more source

Intrafractional stability of MR-guided online adaptive SBRT for prostate cancer

Radiation Oncology, 2021
Background MR-guided online adaptive stereotactic body radiation therapy (SBRT) for prostate cancer aims to reduce toxicity by full compensation of interfractional uncertainties.
J. Schaule, M. Chamberlain, L. Wilke, M. Baumgartl, J. Krayenbühl, M. Zamburlini, M. Mayinger, N. Andratschke, S. Tanadini-Lang, M. Guckenberger   +9 more
doaj   +1 more source

A nomogram to determine required seed air kerma strength in planar 131 Cesium permanent seed implant brachytherapy [PDF]

, 2019
Purpose: Intraoperatively implanted Cesium-131 ( 131 Cs) permanent seed brachytherapy is used to deliver highly localized re-irradiation in recurrent head and neck cancers.
Bar-Ad, Voichita, Doyle, Laura, Hubley, Emily, Luginbuhl, Adam J., Trager, Michael   +4 more
core   +1 more source

Treating cutaneous T-cell lymphoma with highly irregular surfaces with photon irradiation using rice as tissue compensator. [PDF]

, 2015
PurposeCutaneous T-cell lymphoma (CTCL) is known to have an excellent response to radiotherapy, an important treatment modality for this disease.
Chakravarti, Arnab, Gupta, Nilendu, Hattie, Todd, Majithia, Lonika, Porcu, Pierluigi, Rong, Yi, Siddiqui, Farzan, Weldon, Michael, Wong, Henry K, Xu-Welliver, Meng   +9 more
core   +2 more sources