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

Table 1

Results of CT values of liver parenchyma and liver parenchyma ΔHU during HAP and PVP, CT values of portal vein during PVP, and contrast medium dose in G1 and G2.

	CT values of liver parenchyma during HAP (HU)	CT values of liver parenchyma during PVP (HU)	CT values of portal vein during PVP (HU)	Liver parenchyma ΔHU during HAP (HU)	Liver parenchyma ΔHU during PVP (HU)	Contrast medium dose (ml)
G1
G2
	0.367	0.001	0.001	0.059	0.021	0.001