Table 7 Patient and treatment details of SBRT for liver metastasis

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%)