Author:
Farideh Pak, PhD, et al, Cedars Sinai Medical Center, Los Angeles, CA, USA
Summary:
This study from Cedars Sinai Medical Center evaluates the IQM system for patient-specific QA across 37 VMAT treatment plans covering brain, spine, lung, and prostate sites. The authors compare segment-by-segment and cumulative signal analysis, demonstrating that segment-level evaluation improves the detection of localized delivery errors. With a mean segment-level difference of 2.0% and cumulative difference of 1.04%, the findings confirm the precision and reliability of IQM measurements and highlight the clinical value of high-resolution QA in modern radiotherapy.