Table 4.

Criteria for judging injury to a vascular structure

1 Intraoperative identification
1.1 Ligation or clipping noted during the initial cholecystectomy
1.2 Ligation or clipping noted during a subsequent operation other than bile duct repair
1.3 Ligation or clipping noted during a bile duct repair

2 Photographic identification
2.1 Ligation or clipping identified on a videotape
2.2 Ligation or clipping identified on intraoperative photographs

3 Radiological identification
3.1 Hepatic angiography: occlusion, narrowing, intraluminal thrombus or pseudoaneurysm
3.2 Magnetic resonance angiography: occlusion, narrowing, intraluminal thrombus or pseudoaneurysm
3.3 Computed tomographic angiography: occlusion, narrowing, intraluminal thrombus or pseudoaneurysm
3.4 Non-enhancement of a portion of the liver on any of the preceding radiological methods compatible with ischaemia to that portion of the liver

4 Postmortem identification
4.1 Iatrogenic vascular injury noted during postmortem