Table 1.
Clinical characteristics of the patients
| Clinical characteristics | Statistics |
| Age, yr, (median) | 37-87 (69) |
| Sex (male:female) | 17:13 |
| Hepatitis virus | |
| Hepatitis B | 1 |
| Hepatitis C | 5 |
| Serum liver function test: median (range) | |
| Albumin level, g/dL | 4.2 (3.8-4.7) |
| Bilirubin level, mg/dL | 0.6 (0.3-1) |
| Platelet count, × 104/mL | 19.9 (14.9-41.4) |
| Prothrombin time, s | 11.8 (10.1-12.8) |
| CT attenuation value of the liver on non-enhanced CT: median (range) | |
| Right lobe, HU | 56.3 (35.0-70.5) |
| Left lobe, HU | 57.5 (39.5-73.0) |
| Diameter of portal vein: median (range) | |
| Right portal vein, mm | 10.2 (6.6-13.6)b |
| Left portal vein, mm | 8.4 (4.5-10.8)b |
| LPV-to-RPV diameter ratio: median (range) | 0.78 (0.5-1.26) |
| Disease | |
| Criterion 1: Patients with extrahepatic tumors (n) | 15 |
| Early gallbladder cancer without liver invasion | 11 |
| Gastric gastrointestinal stromal tumor | 1 |
| Peritoneal dissemination of ovarian cancer | 1 |
| Intra-abdominal recurrence of gastric cancer | 1 |
| Extrahepatic bile duct cancer without bile duct dilatation | 1 |
| Criterion 2: Patients with intrahepatic small tumors (n) | 15 |
| Hepatocellular carcinoma | 4 |
| Liver metastasis | 9 |
| Intrahepatic cholangiocarcinoma | 2 |
| Tumor location in patients within criterion 2 (n) | |
| Segment 1/segment 2/segment 3/segment 4/segment 6/segment 8 | 3/1/1/2/4/4 |
HU: Hounsfield units; CT: Computed tomography; LPV: Left portal vein; RPV: Right portal vein.
b
P < 0.001.