Research progress in electronic portal imaging device-based in vivo dosimetry verification

In vivo dosimetry (IVD) is currently the most direct and effective means of quality assurance. The electronic portal imaging device (EPID) has been widely used for IVD verification owing to its favorable dosimetric properties. In recent years, an increasing number of EPID-based IVD studies have emerged around the world. The purpose of this paper is to give an overview of the present progress in EPID-based IVD studies, and to provide a reference for the subsequent application of EPID in IVD. Key words: Electronic portal imaging device; Dosimetric properties; In vivo dosimetry