MRI of angiographically occult vascular malformations.

Details

Serval ID
serval:BIB_1EBE626CEB97
Type
Article: article from journal or magazin.
Collection
Publications
Title
MRI of angiographically occult vascular malformations.
Journal
AJR: American journal of roentgenology
Author(s)
Lemme-Plaghos L., Kucharczyk W., Brant-Zawadzki M., Uske A., Edwards M., Norman D., Newton T.H.
ISSN
0361-803X
Publication state
Published
Issued date
06/1986
Peer-reviewed
Oui
Volume
146
Number
6
Pages
1223-1228
Language
english
Abstract
Eleven patients with 15 angiographically occult arteriovenous malformations were studied by magnetic resonance (MR) imaging and computed tomography (CT). Five patients had biopsy proof; six were clinically diagnosed from the long-term clinical follow-up (more than 3 years) and imaging features. Of the 15 lesions, 11 were recognized by both CT and MR. Each method was falsely negative for two lesions. The most useful contribution of MR in the characterization of angiographically occult arteriovenous malformations was the depiction of hemorrhagic foci in 12 of 13 lesions seen on MR. High-attenuation foci indicative of hematomas were seen in only five lesions on CT; the rest were iso- or hypoattenuating. CT detected two very small lesions, in one case as punctate foci of enhancement and in the other as punctate calcification, that were not seen with MR. MR complements CT in characterizing angiographically occult arteriovenous malformations and in distinguishing them from similar-appearing lesions, in particular, small neoplasms. However, when such lesions are seen with only focal calcification and subtle enhancement on CT, routine MR may miss them.
Keywords
Adolescent, Adult, Angiography, Brain Neoplasms/radiography, Calcinosis/radiography, Child, Child, Preschool, Diagnosis, Differential, Evaluation Studies as Topic, Female, Hematoma/radiography, Humans, Infant, Intracranial Arteriovenous Malformations/diagnosis, Intracranial Arteriovenous Malformations/radiography, Magnetic Resonance Spectroscopy/diagnostic use, Male, Middle Aged, Tomography, X-Ray Computed
Pubmed
Web of science
Create date
25/07/2008 10:53
Last modification date
20/08/2019 12:54
Usage data