Detector‐specific correction factors for small‐field photon dosimetry in magnetic resonance‐guided radiation therapy: A systematic review and meta‐analysis

The findings confirm that detector response in MRgRT is a complex function of the measurement setup. A single correction factor is insufficient for clinical use. Dosimetric accuracy in MRgRT requires the use of correction factors that are specific to the MR-Linac's B-field strength, the exact detector model, and the measurement orientation. This analysis provides pooled, stratified data to support clinical physicists and inform the development of future dosimetry protocols.