[Doppler ultrasound and portal hypertension: quantitative analysis]

Usually, the clinical evaluation of diffuse hepatic changes only needs the answers to three important questions: is there a flow, in which direction and are the porto-caval shunts efficient? When an answer is found to these questions, the quantitative measurement of the portal flow can give complementary precisions to achieve a better physiopathological understanding of portal hypertension or blood malignancies and for the follow-up evaluation.