Accurate ultrasonography-based portal pressure assessment in patients with hepatocellular carcinoma

Table 3 Correlations between portal pressure gradient and clinicopathologic parameters and parameters of Doppler ultrasound

Index	Correlation with PPG (γ)	P value
Age (yr)	0.345	0.632
Peri-hepatic ascites (yes vs no)	0.753	0.233
Platelet count (× 109/L)	-0.341	0.061
Total bilirubin (mg/dL)	-0.231	0.487
Serum albumin (g/dL)	0.542	0.683
AST (IU/L)	0.452	0.712
ALT (IU/L)	0.028	0.652
NH3 (μg/dL)	0.126	0.515
MELD score	0.025	0.523
Portal vein diameter (cm)	0.102	0.019
Portal vein velocity (cm/s)	-0.321	0.034
Portal blood flow (mL/min)	-0.032	0.048
PV-CI	0.285	0.021
IVC diameter (cm)	0.129	0.496
IVC blood velocity (cm/s)	0.163	0.389
Spleen vein diameter (cm)	0.142	0.248
Spleen vein velocity (cm/s)	-0.062	0.654

AST: Aspartate aminotransferase; ALT: Alanine aminotransferase; MELD: Model for End-stage Liver Disease; PVV: Portal vein velocity; PV-CI: Portal vein congestion index.