癌的光动力学诊断和治疗自1980年起迅速地应用于临床。为了获得光动力学效果,使用了毒性较小的肿瘤亲和性光敏剂HPD,用405nm的Kr~+激光进行诊断,用630nm的Ar~+染料激光进行治疗。 在诊断上已能通过观察Kr~+激光照射癌灶区时所产生的HPD的特异性荧光进行诊 The photodynamic diagnosis and treatment of cancer has been rapidly applied clinically since 1980. In order to obtain photodynamic effects, a less toxic tumor affinity photosensitizer, HPD, was used. The diagnosis was performed with a 405 nm Kr~+ laser and treated with a 630 nm Ar~+ dye laser. Diagnosis can be performed by observing the specific fluorescence of HPD generated when Kr~+ laser irradiation is applied to the cancer area