Fig. 8

Representative images of an 85-year-old female with chronic hepatitis B who underwent magnetic resonance imaging (MRI) using both scan protocols, same as the patient in Fig. 7. MR images acquired with the 10-s scan protocol (a, pre-contrast; b, first arterial phase; c, second arterial phase; d, portal venous phase; e, hepatobiliary phase; f, pre-contrast; g, hepatobiliary phase) are shown. Images a–e were acquired at the level of the posterior segmental branch of the portal vein, whereas images f and g show the level of the right hepatic vein (RHV). The average visual score for each item is as follows: the outline of the liver (pre-contrast, 3.5; first arterial phase, 2.5; second arterial phase, 2.5; portal venous phase, 3; and hepatobiliary phase, 3.5); RHV (pre-contrast, 2 and hepatobiliary phase, 2); portal vein, 3.5; hepatic artery (first arterial phase, 1 and second arterial phase, 2.5); and overall image quality, 2.5. The optimal arterial phase could not be obtained