A Smartphone-Based Motion Monitoring System for Surface Guided Radiation Therapy.

ABSTRACT:

Purpose

Surface guided radiation therapy (SGRT) improves patient setup and motion monitoring, particularly for deep-inspiratory breath-hold (DIBH) maneuvers in left-sided breast cancer treatment. However, high costs and complexity limit widespread adoption, especially in low-resource settings. In this study, the purpose is to develop and validate a smartphone-based iOS SGRT application (iSGRT) leveraging Light-Detection-and-Ranging (LiDAR) sensors on smartphone-devices for accurate, low-cost surface tracking for radiation therapy.

Methods and materials

iSGRT was developed in Xcode using Swift and Open3D, and captures 6-degrees-of-freedom (6DoF) motion for patient positioning and respiratory monitoring. Application was tested using the LiDAR camera on an Apple iPhone 15 Pro,

SUBMITTER: Capaldi DPI 

PROVIDER: S-EPMC12828761 | biostudies-literature | 2026 Mar

REPOSITORIES: biostudies-literature