This article mainly disscusses the mechanism,doses,animal and clinical experiments and safety of intravascular brachytherapy.It is a re-view of relatively recently developed field of this technique.

• 核素内照射治疗是目前解决这一难题最有前景的方法,最近几年来在血管核素内照射的机制、剂量、动物和临床实验及安全性等方面取得了一些进展。