Dose calculation plays an important role in the accuracy of radiotherapy treatment planning and beam delivery. The Monte Carlo (MC) method is capable of achieving the highest accuracy in radiotherapy dose calculation and has been implemented in many commercial systems for radiotherapy treatment planning.

2019年11月2日 · Specific recommendations are given on methods and practical procedures to commission clinical beam models for MC-based TPS. TABLE OF CONTENTS. 1. INTRODUCTION. 2. BEAM SIMULATION FOR RADIOTHERAPY MACHINES. 3. BEAM MODELING FOR MC DOSE CALCULATION. 3.D.1. …

Dose calculation plays an important role in the accuracy of radiotherapy treatment planning and beam delivery. The Monte Carlo (MC) method is capable of achieving the highest accuracy in radiotherapy dose calculation and has been implemented in many commercial systems for radiotherapy treatment plan …

Proton Beam Therapy (PBT) is a technology for delivering conformal external beam radiation with positively charged subatomic particles to a well-defined treatment volume. PBT is approved by the U.S. Food and Drug Administration.

A beam profile is the graphical representation of the relative dose versus the dis-tance from the central axis at a specific depth. The penumbra region, usually defined as the region between the 80% and the 20% relative dose in the beam profile, is an intrinsic characteristic of any beam, whether photon or electron.

2022年2月1日 · This study aims at analyzing beam data commissioning along with verifying Monte Carlo-based treatment planning system on the basis of the manufacturer guidelines for Elekta Versa HD Linear Accelerator. Moreover, evaluating the beam match process in terms of quality index, photon profile and multi leaf collimator (MLC) offset is aimed as well.

We describe and evaluate clinical photon beam modeling based on multisource models, including lateral beam quality variations. The evaluation is based on user data for a pencil kernel algorithm and a point kernel algorithm (collapsed cone) used in the clinical treatment planning systems Helax-TMS and Nucletron-Oncentra.

A validated MC beam model for the UHDR capable Mobetron is presented for the first time. The MC model can be utilized for direct dose calculation or to generate beam modeling input required for treatment planning systems for FLASH-RT planning.

Jiang et al.61fur-ther developed a practical method to derive beam model parameters for photon beams to account specifically for the effects of extrafocal scattering radiation and monitor chamber backscattering.

2024年3月1日 · We provide a comprehensive review of the recent advances in dose prediction for tumor radiation therapy. The review covers diverse approaches ranging from traditional knowledge-based planning to emerging deep learning techniques. We conclude the review with the primary challenge of dose prediction and several prospective research directions.