Left‐sided breast cancer loco‐regional radiotherapy with deep inspiration breath‐hold: Does volumetric‐modulated arc radiotherapy reduce heart dose further compared with tangential intensity‐modulated radiotherapy?

Abstract

On average, there was no significant difference in MHD between VMAT-DIBH and t-IMRT-DIBH. However, VMAT-DIBH was found to benefit a select group of patients. For patients in whom the MHD was >6.3 Gy with t-IMRT-DIBH, the use of VMAT-DIBH resulted in a benefit in reducing the MHD.