Wedged pressure recording and injection of contrast medium into the hepatic veins: a study performed on the livers of cadavers to explain clinical findings.

Portal and hepatic veins were injected with Microfil in the normal and cirrhotic livers of cadavers. Based on pathologic and anatomic studies previously reported and on the present investigation, the authors explain the background of wedged hepatic pressure recording and the findings when contrast medium is injected into a catheter wedged in a hepatic vein.