Optimizing Scan Delays of Fixed Duration Contrast Injection in Contrast-Enhanced Biphasic Multidetector-Row CT for the Liver and the Detection of Hypervascular Hepatocellular Carcinoma

Abstract

For the detection of hypervascular HCCs, the optimal scan delay after a 30-second contrast injection of the hepatic arterial phase, was found to range from 5 to 10 seconds, and that of the portal venous phase was 35 seconds or somewhat longer.