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Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Proton Therapy Delivery and Its Clinical Application in Select Solid Tumor Malignancies

Published on: February 6, 2019

A GPU implementation of a track-repeating algorithm for proton radiotherapy dose calculations.

Pablo P Yepes¹, Dragan Mirkovic, Phillip J Taddei

¹Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA. yepes@rice.edu

Physics in Medicine and Biology

|November 16, 2010

Summary

A new graphics processor unit (GPU) implementation of the fast dose calculator achieves Monte Carlo accuracy for proton radiotherapy dose calculations. This method provides accurate results in under a minute, enabling real-time clinical applications.

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Area of Science:

Medical Physics
Radiation Oncology
Computational Science

Background:

Accurate dose calculation is crucial for proton radiotherapy.
Current fast analytical algorithms lack satisfactory accuracy in heterogeneous areas like the thorax.
Monte Carlo methods offer high accuracy but are computationally intensive for clinical use.

Purpose of the Study:

To implement and evaluate a track-repeating fast dose calculator for proton radiotherapy on graphics processor units (GPUs).
To assess the accuracy and computational efficiency of the GPU-based implementation compared to Monte Carlo and CPU-based methods.

Main Methods:

Implementation of a track-repeating fast dose calculator algorithm on a GPU architecture.
Comparison of dose calculations with full Monte Carlo and CPU-based track-repeating methods.
Evaluation of computational time and statistical uncertainty.

Main Results:

The GPU implementation achieved dose calculations within 2% of full Monte Carlo and CPU-based track-repeating results.
The algorithm attained a statistical uncertainty of 2%.
The calculation time was reduced to less than 1 minute using a single GPU card.

Conclusions:

GPU acceleration significantly enhances the speed of accurate proton radiotherapy dose calculations.
The implemented fast dose calculator on GPUs offers a practical solution for real-time, accurate dose computations in clinical settings.
This advancement holds promise for improving treatment planning and delivery in proton therapy.