林口長庚紀念醫院放射治療科436例中樞神經系統腫瘤中,有99例是多形性神經膠母細胞瘤,其中34例以每天一次放射治療方式來治療,另外18例以每天多次放射治療來處理,前者需時六週,後者則只需一周時間,經六個月以上之追蹤檢查後,計算其存活率,兩者並沒有差異(Cox's F-lest, P> 0.05),但對存活期短暫之多形性神經膠母細胞適之病患而言,此每日多次放射治療方式值得繼續探討和採用
Among 436 cases of primary CNS tumor, there are 99 cases of high grade astrocytoma, of which 34 cases were treated with conventional irradiation with equivalent whole brain dose≧4000cGy/20fx/4wks, and also 18 cases were treated with multiple daily fractionated irradiation with dose from 2800cGy/14fx/5days to 3500cGy/ 14fx/5days under high dose steriod coverage. After at least 6 month follow-up, the survivorship among two groups is similar to each other, but the multiple dialy fractionated irradiation group was treated in only one week instead of 6 weeks as with conventional fractionated irradiation.