To prospectively evaluate, in patients with liver cirrhosis, the correlation between the renovascular impedance measured by using color flow and pulsed wave Doppler ultrasonography (US) and the portal pressure measured by using the hepatic venous pressure gradient (HVPG).
Dipartimento di Medicina Interna, Cardioangiologia, Epatologia, Università di Bologna, Policlinico S. Orsola-Malpighi, via Albertoni 15-40138 Bologna, Italy.