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DOI: 10.1055/s-0028-1109110
© Georg Thieme Verlag KG Stuttgart · New York
Pre-Interventional Assessment of a Vertebrobasilar Aneurysm with 7 Tesla Time-of-Flight MR Angiography
Publikationsverlauf
received: 15.10.2008
accepted: 7.12.2008
Publikationsdatum:
19. Februar 2009 (online)
![](https://www.thieme-connect.de/media/roefo/200903/lookinside/thumbnails/10.1055-s-0028-1109110-1.jpg)
Introduction
According to autopsy studies the prevalence of intracranial aneurysms ranges from 0.4 to 6 %. Subarachnoid hemorrhage (SAH), in 80 % caused by rupture of an intracranial aneurysm, is responsible for about 25 % of all deaths related to cerebrovascular disease. Digital subtraction angiography (DSA) is currently standard in pre-treatment detection of intracranial aneurysms, because computed tomographic angiography (CTA) and magnetic resonance angiography (MRA) can miss small lesions (< 3 mm). The implementation of 7 T whole-body scanners for magnetic resonance imaging (MRI) of humans allows the examination of intracranial vasculature with higher spatial resolution due to an increased signal-to-noise ratio (SNR). We describe a patient with an angiographically confirmed vertebrobasilar aneurysm evaluated by 7 T TOF MRA and discuss advantages of this technique in comparison to 1.5 T TOF MRA.
Dr. Christoph Mönninghoff
Universitätsklinikum Essen
Hufelandstr. 55
45147 Essen
Telefon: + + 49/2 01/1 83 60 75
Fax: + + 49/2 01/1 83 60 75
eMail: christoph.moenninghoff@uk-essen.de