[Multimodal Magnetic Resonance Diagnostics of Arteriovenous Malformations]

Overview

Journal Radiologe

Specialty Radiology

Date 2007 Sep 27

PMID 17896101

Authors

M Essig

Affiliations

Soon will be listed here.

Abstract

Arteriovenous malformations (AVM) are complex inborn malformations of the vascular system. In the brain they can lead to severe complications, such as parenchymal haemorrhaging, epileptic seizures or neurologic failure, which necessitates a safe diagnosis and therapy. In addition to conventional angiography, magnetic resonance imaging (MRI) and MR angiography (MRA) have now been established as the gold standard diagnostic procedures. Using MRA the angioarchitecture of malformations can be captured and with a parallel imaging of the parenchyme the method is very well suited for therapy planning and monitoring. This review summarizes the present day possibilities of multimodal MRT diagnosis of AVM and describes the purely morphologic as well as the physiologic and pathophysiologic characteristics. The various MR angiographic techniques will be firstly described with respect to the basic technical principles and the results obtained so far will be summarized. The principle of functional MRT will be described and the diagnostic possibilities with respect to AVM will be discussed.

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