[Stereotactic radiotherapy for metastatic liver cancer]

Twenty cases (27 therapeutic sites/30 nodules) of metastatic liver cancer treated with stereotactic radiotherapy (SRT)were analyzed. The original sites of cancer were colorectal(8 cases), breast(4 cases), stomach(3 cases), esophagus(2 cases), and other organs (3 cases). SRT was performed with 52.8 Gy·4 fr·-1·wk-1. The response rate was 78%, including complete response (CR) at 8 sites, partial response (PR) at 10 sites, stable disease (SD) at 2 sites, progressive disease(PD) at 3 sites, and not detected(ND) at 4 sites, thus demonstrating a potent local therapeutic effect. Ten patients survived for more than 1 year, 8 patients survived for 2 years, and 4 died before 6 months. Clinical analysis suggests that the ideal indications for SRT are patients with a solitary nodule and without extrahepatic disease who have undergone systemic chemotherapy.