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Landmarks choice according to level of reproducibility/reliability
| Category level |
landmarks |
|---|---|
| I | Point of intrahepatic vessel bifurcations |
| II | Intrahepatic smooth vessel segment; small benign lesions (calcification, cyst, etc.) |
| III | Indentation or bulge points of liver capsula or ligament; surgical staples |
| IV | Smooth portion of liver capsula or ligament |
