First direct machine-specific parameters incorporated in Spot-scanning Proton Arc (SPArc) optimization algorithm.

Document Type

Article

Publication Date

8-2024

Publication Title

Medical physics

Abstract

BACKGROUND: Spot-scanning Proton Arc (SPArc) has been of significant interest in recent years because of its superior plan quality. Currently, the primary focus of research and development is on deliverability and treatment efficiency.

PURPOSE: To address the challenges in generating a deliverable and efficient SPArc plan for a proton therapy system with a massive gantry, we developed a novel SPArc optimization algorithm (SPArc

METHODS: SPArc delivery sequence model (DSM

RESULTS: With a similar plan quality, objective value, number of energy layers, and spots, both SPArc

CONCLUSIONS: For the first time, clinical users not only could generate a SPArc plan meeting the mechanical constraint of their proton system but also directly control the arc treatment speed and momentum changes of the gantry during the plan optimization process. This work paved the way for the routine clinical implementation of proton arc therapy in the treatment planning system.

Volume

51

Issue

8

First Page

5682

Last Page

5692

DOI

10.1002/mp.16985

ISSN

2473-4209

PubMed ID

38340368

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