Contrast-enhanced MR 3D angiography in the assessment of brain AVMs

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dc.authoridHamamcioglu, Mustafa Kemal/0000-0003-1960-8182
dc.authoridDemir, Mustafa Kemal/0000-0002-7023-6153
dc.authorwosidHamamcioglu, Mustafa Kemal/A-3520-2019
dc.contributor.authorUnlu, Ercument
dc.contributor.authorTemizoz, Osman
dc.contributor.authorAlbayram, Sait
dc.contributor.authorGenchellac, Hakan
dc.contributor.authorHamamcioglu, M. Kemal
dc.contributor.authorKurt, Imran
dc.contributor.authorDemir, M. Kemal
dc.date.accessioned2024-06-12T10:58:25Z
dc.date.available2024-06-12T10:58:25Z
dc.date.issued2006
dc.departmentTrakya Üniversitesien_US
dc.description.abstractBackground and purpose: Digital subtraction angiography (DSA) is the current reference standard for the diagnosis, assessment, and management of brain arteriovenous malformations (AVMs). The purpose of this study was to compare the diagnostic utility of three-dimensional (3D) time-off-light (TOF) magnetic resonance angiography (MRA) and contrast-enhanced 3D MRA in patients with intracranial arteriovenous malformations (AVMs) in different sizes and locations. The AVM diagnosis was proved via DSA and almost half of the patients had also hematoma. Materials and methods: Two radiologists, experienced on neurovascular imaging and independent from each other, retrospectively reviewed two MRA techniques and DSA with regard to the assessment of feeding arteries, AVM nidus, and venous drainage patterns on 20 patients with 23 examinations by scoring system. Disagreements were resolved by consensus. Results: An excellent agreement between contrast-enhanced MRA and DSA was found in order to assess the numbers of arterial feeders and draining veins (Spearman r=0.913, P<0.001). The average scores in contrast-enhanced MRA for feeders, nidi, and drainers were respectively 2.26, 2.69, and 2.48, while in TOF-MRA they are 1.96, 1.35, and 0.89, respectively. Conclusion: Compared to TOF-MRA, 3D contrast-enhanced MRA is useful for visualization by subtraction technique of malformation components presented by hematoma or by haem product. On the other hand, for the cases presented by slow or complex flow that is especially in around or nidi or around the venous portion is also advantageous because of the independence from flow-related enhancement. Therapeutic effects were clearly demonstrated in three follow-up patients. A major limitation of this technique is the low spatial resolution. Since there is such a limitation, arterial feeder of a case with micro-AVM is not detected by contrast-enhanced MRA and nidus for the same case was observed retrospectively. In this respect, we believe that 3D contrast-enhanced MRA is a less invasive and inexpensive angiographic tool, but not a safe substitute for DSA. Yet, it can be a beneficial supplement to DSA in patients with cerebral AVMs at both initial diagnosis and at follow-up processes after therapy. (C) 2006 Elsevier Ireland Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.ejrad.2006.08.007
dc.identifier.endpage378en_US
dc.identifier.issn0720-048X
dc.identifier.issn1872-7727
dc.identifier.issue3en_US
dc.identifier.pmid16965882en_US
dc.identifier.scopus2-s2.0-33751173213en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage367en_US
dc.identifier.urihttps://doi.org/10.1016/j.ejrad.2006.08.007
dc.identifier.urihttps://hdl.handle.net/20.500.14551/20065
dc.identifier.volume60en_US
dc.identifier.wosWOS:000242978200008en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Ireland Ltden_US
dc.relation.ispartofEuropean Journal Of Radiologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectContrast-Enhanced Magnetic Resonance Angiographyen_US
dc.subjectTime-Of-Flight Magnetic Resonance Angiographyen_US
dc.subjectConventional Catheter Angiographyen_US
dc.subjectArteriovenous Malformationen_US
dc.subjectBrainen_US
dc.subjectCerebral Arteriovenous-Malformationsen_US
dc.subjectDigital-Subtraction-Angiographyen_US
dc.subjectMagnetic-Resonance Angiographyen_US
dc.subjectTime-Of-Flighten_US
dc.subjectIntracranial Vascular Malformationsen_US
dc.subjectFollow-Upen_US
dc.subjectNeurologic Complicationsen_US
dc.subjectDetachable Coilsen_US
dc.subjectAneurysmsen_US
dc.subjectVesselsen_US
dc.titleContrast-enhanced MR 3D angiography in the assessment of brain AVMsen_US
dc.typeArticleen_US

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