Zerebrale a.v. Angiome:Dreidimensionale Darstellung mit der Spiral-CT

Abstract

In 20 patients with known or suspected supratentorial arteriovenous malformations, an attempt was made to see how far CT angiography with 3-dimensional reconstructions is able to make a diagnosis and to differentiate the various components of the angioma. Spiral CT was performed following an intravenous bolus injection of 60-80 ml of iodine containing contrast medium. In all patients the diagnosis was confirmed by intra-arterial DSA of the vertebral vessels. In 13 patients, av malformations could be diagnosed following multiplanar 3-D reconstructions which agreed with the findings on DSA. The large supplying vessels, the nidus and the large draining veins could be defined with certainty. In 6 patients follow-up examination after embolisation was performed. The results could be demonstrated in three dimensions and the success of treatment could be documented unequivocally. CT angiography with 3-D reconstruction is able to supply important information in the majority of intracranial av malformations, both during initial investigation and following treatment.

Möglichkeiten und Grenzen der Spiral-CT in der neuroradiologischen Diagnostik

“…Der sichere Nachweis mit Darstellung der arteriellen Zuflª und ven6sen Abflª die wichtig ftir die Therapieentscheidung sind, gelingt nur mit der digitalen Subtraktionsangiographie [ 17].…”