- Late arterial phase is the main sequence for stratifying lesion enhancement
- Good late arterial phase should have both hepatic artery and portal vein enhanced
- This is the hepatic artery-dominant phase (HADP)
- Contrast timing
- Hepatic artery-only phase (HAOP)
- Hepatic artery-dominant phase (HADP) AKA capillary phase - 15s
- Portal venous phase (PVP) or early hepatic venous phase - 45 - 60s
- Hepatic venous phase AKA interstitial phase - 90s - 5min