Present Status and Problems of Photoradiation Therapy for Gastrointestinal Cancer

Abstract

We have carried out and evaluated clinically photoradiation therapy (PRT) of 19 cases of early gastrointestinal cancer. Most of those have been cured completely but in a few cases recurrence or remnant of cancer cells was seen. The accurate diagnosis of lymph node metastasis and depth infiltration of carcinoma must be done carefully before irradiation for successful treatment. We have also studied experimentally on the effect of PRT with the contact type of micro laser rod. Safety and reliability of this method have been confirmed.