In 31 ItT-alone patients with sacral pain, 10 cases (32%) achieved good pain relief, 14 cases (45%) achieved moderate pain relief, and 7 cases (23%) had no pain relief at all.

• 局部疼痛改善方面，在31例单独放射治疗且以局部疼痛表现者，10例(32%25)自觉有良好改善，14例(45%25)自觉有改善但疼痛仍存在，7例(23%25)自觉没有改善。