Related Experiment Video
Updated: Apr 18, 2026
Treatment of Liver Metastases Using an Internal Target Volume Method for Stereotactic Body Radiotherapy
Published on: May 8, 2018
Robotic stereotactic body radiation therapy for liver-limited malignant tumors
Mariusz Frączek1, Jacek Sobocki2, Katarzyna Pędziwiatr3
1Department of General, Transplant and Liver Surgery, Medical University of Warsaw, Warsaw, Poland.
Introduction:
Stereotactic body radiotherapy (SBRT) is rapidly gaining favor as a new treatment modality for malignant liver tumors. Most of the studies have recruited patients with disseminated disease originating from the liver. This study focuses on disease limited to the liver.
Aim:
To perform a retrospective analysis of all patients with liver tumors treated by robotic stereotactic body radiation therapy in a single center.
Material And Methods:
The study included 13 patients with 22 lesions. The inclusion criteria were: patients with 1-4 inoperable liver lesions and absence of any extrahepatic disease. All but 3 patients received 3 fractions delivered by the Cyberknife system of a total of 45 grey (Gy). The other 3 patients received 30 Gy.
Results:
The median follow-up time was 10.8 months (range: 7-16). The median dose was 41.5 Gy (range: 30-45). One lesion regressed (8%). In 5 patients, the disease was locally stabilized (38%), and in 7 other patients progression occurred (54%). Twelve patients (92%) are still alive, and 1 patient (8%) died. In 1 patient a new cancer (leukemia) was diagnosed.
Conclusions:
The SBRT is well tolerated and effective for local control of most liver malignant tumors. It appears that SBRT is best suited for those patients in whom systemic recurrence can be controlled by chemotherapy. Further studies are mandatory to elucidate these effects on tumors of varying histology and to elaborate upon criteria used to select patients who can benefit most from this treatment.
