Table 1.
Patient characteristics.
| Patients | No. | % |
|---|---|---|
| Sex | ||
| Female | 5 | 20 |
| Male | 20 | 80 |
| Age, years | ||
| Median | 58 | |
| Range | 35–82 | |
| Primary sites | ||
| Nasopharynx | 7 | 28 |
| Colorectal | 5 | 20 |
| Lung | 5 | 20 |
| Esophageal | 4 | 16 |
| Kidney | 1 | 4 |
| Liver | 1 | 4 |
| Breast | 1 | 4 |
| Endometrium | 1 | 4 |
| Time since primary tumor diagnosis, months | ||
| Median | 15.9 | |
| Range | 0–126.1 | |
| Time since diagnosis of liver metastases, months | ||
| Median | 5.1 | |
| Range | 0–20.3 | |
| No. of liver lesions | ||
| 1 | 17 | 68 |
| 2 | 5 | 20 |
| 3 | 2 | 8 |
| 5 | 1 | 4 |
| Timing of Metastases, months | ||
| At initial diagnostic/synchronous | 8 | 32 |
| Metachronous | 17 | 68 |
| Previous local therapy | ||
| Yes | 4 | 16 |
| No | 21 | 84 |
| Previous chemotherapy | ||
| Yes | 19 | 76 |
| No | 6 | 24 |
| Maximum lesion diameter, cm | ||
| Median | 3.3 | |
| Range | 1.6–16.7 | |
| >3 | 13 | 52 |
| ≤3 | 12 | 48 |
| No. of previous chemotherapy regimens | ||
| 0 | 6 | 24 |
| 1 | 4 | 16 |
| 2–3 | 4 | 16 |
| ≥4 | 11 | 44 |
| Presence of active extrahepatic disease | ||
| Yes | 11 | 44 |
| No | 14 | 56 |
| Lesion volume, mL | ||
| Median | 15.39 | |
| Range | 3.15–2214.75 | |
| Total dose, Gy | ||
| Median | 50 | |
| Range | 30-60 | |
| Dose/fraction, Gy | ||
| Median | 3 | |
| Range | 2–5.2 | |
| BED, Gy | ||
| Median | 67.2 | |
| Range | 39–79.04 | |
| No. of fractions | ||
| Median | 18 | |
| Range | 7–30 | |
| Liver average dose, Gy | ||
| Median | 15.56 | |
| Range | 4.30–22.91 | |
GTV, gross tumor volume; Gy, grays; BED, biologically effective dose.