Computed tomography in intracranial arteriovenous malformations.

22 patients with proved intracranial arteriovenous malformations (AVM) were studied by computed tomography (CT). Of these, 18 were also studied by CT after intravenous injection of contrast material. The plain scan was normal in 23% of cases. A combination of plain and contrast-enhancement CT proved to be superior to other screening techniques in patients with a possible intracranial AVM.