Computed tomography during arterial portography in idiopathic portal hypertension.

Computed tomography (CT) during arterial portography was performed in two cases of idiopathic portal hypertension (IPH). Multiple patchy low-density areas with unclear margins and abnormally short distances between some of the medium-sized portal branches and the liver surface were demonstrated. These findings were distinctly different from those of liver cirrhosis. CT during arterial portography was useful for differentiating IPH from liver cirrhosis.