腔内放射治疗（放疗）或与外照射结合对食管癌有较强的近期控制作用，但局部复发率和组织硬化、狭窄及穿孔、瘘道形成令人担忧［１］。而管腔内支架对于食管癌良、恶性狭窄，穿孔、瘘道等有独到之处，对肿瘤无杀伤作用［２～４］。我们提出将放射性同位素和支架捆绑一起，制成 Intraluminal radiation therapy (radiotherapy) or combined with external irradiation on esophageal cancer has a strong near-term control, but the local recurrence rate and tissue sclerosis, stenosis and perforation, fistula formation is cause for concern [1]. The stent for esophageal cancer benign and malignant stenosis, perforation, fistula and other unique, no tumor killing [2 ~ 4]. We propose to bind radioisotopes and scaffolds together and make them