Table 7.

Patient and treatment details of SBRT for liver metastasis

Variable (N)	N (%)
Gender (174 patients)
Male	95 (54%)
Female	79 (45%)
Median age (range), years	69 (41 – 91)
Median Karnofsky score (range)	90 (50–100)
Previous treatment
Surgery	22 (12%)
External beam radiation	7 (4.0%)
Radiosurgery	8 (4.6%)
Chemo embolization	1 (0.6%)
Radiofrequency ablation	5 (2.9%)
Chemotherapy	103 (59.2%)
None	54 (31.0%)
Primary tumor site (204 lesions)
Colorectal	103 (50.5%)
Lung	22 (10.8%)
Breast	18 (8.8%)
Pancreas	9 (4.4%)
Gynecological	9 (4.4%)
Gastric	9 (4.4%)
Head and neck	7 (3.4%)
Malignant melanoma	4 (2.0%)
Anal	3 (1.5%)
Kidney	2 (1%)
Intrahepatic bile duct	2 (1%)
Other	14 (6.9%)
Median lesion volume, cc	27.3 (1–606)
Median lesion size, cm	2.7 (0.12 – 12.3)
Median number of lesions (range)	1(1–4)
Median number of fractions	3 (1–5)
Median dose (range), Gy	45 (10 – 61)
Prescription dose range
10 – 30 Gy	35 (16.7%)
33 – 39 Gy	45 (21.6%)
40 – 45 Gy	42 (20.6%)
46.5 – 48 Gy	18 (8.8%)
51 – 54 Gy	38 (18.6%)
57 – 60 Gy	28 (13.7%)