Geometric characterization of an electromagnetic surface tracking system in a radiation therapy environment.

ABSTRACT:

Background

Despite advances in image-guided radiation therapy (IGRT), real-time, soft-tissue-based, volumetric motion monitoring remains unsolved. Integrated MRI+Linac systems are a solution, but are costly and complex. X-ray and optical photogrammetry-based systems have their limitations. Surrogate-based motion models, which use external signals to estimate internal motion, offer an alternative. We explore the feasibility of an electromagnetic (EM) fiducial-based device integrated with a surrogate-based motion model for real-time in-room volumetric motion monitoring.

Purpose

To assess the feasibility of an EM-tracking system in the linac room, with an eventual goal of integrating it into an MRI-compatible system for real-time volumetric motion monitoring.

Methods

We

SUBMITTER: Soomro MH 

PROVIDER: S-EPMC12260265 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature