An Individually Optimized Protocol of Contrast Medium Injection in Enhanced CT Scan for Liver Imaging

Figure 3

A 48-year-old male patient of G1 with HCC lesions was found liver occupied by ultrasound in physical examination. Unenhanced CT scans (a) revealed a liver S7 low-density round mass with clear boundary. Enhanced CT scans revealed significantly enhanced heterogeneous mass during HAP (b), the density of which was higher than the liver parenchyma of the same slice, and TLC value was 38 HU; the mass density in PVP (c) was lower than liver parenchyma and was enhanced during HAP and hypodense during PVP, and TLC value was −12 HU.

(a)

(b)

(c)