血卟啉激光光敏疗法(简称 P、D、T)用于诊治恶性脑胶质细胞瘤,可选择性杀伤恶性肿瘤而不损伤或尽量少损伤正常脑组织,使伤残程度尽可能减少,保持器官功能;且能将常规手术后残留的肿瘤细胞杀灭,减少复发率。因脑组织有血脑屏障存在,对 HPD 的代谢与其它组织不同,因此必须寻找一个注 HPD 后的最佳治疗时间,此时正常脑组织内 HPD 已大 Hematoporphyrin laser phototherapy (P, D, T) is used for the diagnosis and treatment of malignant brain gliomas, which can selectively kill malignant tumors without damaging or minimizing damage to normal brain tissue, so as to reduce the degree of disability as much as possible. Organ function; and can kill the residual tumor cells after routine surgery, reducing the recurrence rate. Due to the existence of blood-brain barrier in the brain tissue, the metabolism of HPD is different from that of other tissues. Therefore, it is necessary to find the best treatment time after HPD. At this time, the HPD in normal brain tissue is large.