Development and validation of a 1.5 T MR‐Linac full accelerator head and cryostat model for Monte Carlo dose simulations

M Friedel, M Nachbar, D Mönnich, O Dohm… - Medical …, 2019 - Wiley Online Library
Purpose To develop, implement, and validate a full 1.5 T/7 MV magnetic resonance (MR)‐
Linac accelerator head and cryostat model in EGSnrc for high precision dose calculations …

TransDose: a transformer-based UNet model for fast and accurate dose calculation for MR-LINACs

F Xiao, J Cai, X Zhou, L Zhou, T Song… - Physics in Medicine & …, 2022 - iopscience.iop.org
Objective. To present a transformer-based UNet model (TransDose) for fast and accurate
dose calculation for magnetic resonance-linear accelerators (MR-LINACs). Approach. A 2D …

Experimental verification of magnetic field dose effects for the MRI-accelerator

AJE Raaijmakers, BW Raaymakers… - Physics in Medicine & …, 2007 - iopscience.iop.org
The MRI-linear accelerator system, currently being developed, is designed such that the
patient is irradiated in the presence of a magnetic field. This influences the dose distribution …

Extension and validation of a GPU‐Monte Carlo dose engine gDPM for 1.5 T MR‐LINAC online independent dose verification

Y Li, S Ding, B Wang, H Liu, X Huang… - Medical Physics, 2021 - Wiley Online Library
Purpose To extend and validate the accuracy and efficiency of a graphics processing unit
(GPU)‐Monte Carlo dose engine for Elekta Unity 1.5 T Magnetic Resonance‐Linear …

Accounting for the fringe magnetic field from the bending magnet in a Monte Carlo accelerator treatment head simulation

TP O'shea, MJ Foley, BA Faddegon - Medical physics, 2011 - Wiley Online Library
Purpose: Monte Carlo (MC) simulation can be used for accurate electron beam treatment
planning and modeling. Measurement of large electron fields, with the applicator removed …

Experimental verification of EGS nrc Monte Carlo calculated depth doses within a realistic parallel magnetic field in a polystyrene phantom

A Ghila, S Steciw, BG Fallone, S Rathee - Medical physics, 2017 - Wiley Online Library
Purpose Integrating a linac with a magnetic resonance imager (MRI) will revolutionize the
accuracy of external beam radiation treatments. Irradiating in the presence of a strong …

Development and clinical application of a GPU‐based Monte Carlo dose verification module and software for 1.5 T MR‐LINAC

B Cheng, Y Xu, S Li, Q Ren, X Pei, K Men… - Medical …, 2023 - Wiley Online Library
Background Adaptive radiotherapy (ART) has made significant advances owing to magnetic
resonance linear accelerator (MR‐LINAC), which provides superior soft‐tissue contrast, fast …

Evaluation of a commercial MRI Linac based Monte Carlo dose calculation algorithm with geant 4

SB Ahmad, A Sarfehnia, MR Paudel, A Kim… - Medical …, 2016 - Wiley Online Library
Purpose: This paper provides a comparison between a fast, commercial, in‐patient Monte
Carlo dose calculation algorithm (GPUMCD) and geant4. It also evaluates the dosimetric …

A GPU‐accelerated Monte Carlo dose calculation platform and its application toward validating an MRI‐guided radiation therapy beam model

Y Wang, TR Mazur, O Green, Y Hu, H Li… - Medical …, 2016 - Wiley Online Library
Purpose: The clinical commissioning of IMRT subject to a magnetic field is challenging. The
purpose of this work is to develop a GPU‐accelerated Monte Carlo dose calculation platform …

Sensitive volume effects on Monte Carlo calculated ion chamber response in magnetic fields

VN Malkov, DWO Rogers - Medical Physics, 2017 - Wiley Online Library
Purpose The development of magnetic resonance‐guided radiation therapy (MR g RT)
necessitates accurate Monte Carlo (MC) models of ion chambers for computing ion chamber …