Intracranial MR angiography: Its role in the integrated approach to brain infarction

B. A. Johnson, J. E. Heiserman, B. P. Drayer, P. J. Keller

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

PURPOSE: To determine the contribution of cranial MR angiography (MRA) for the evaluation of patients with acute and subacute brain infarction. METHODS: MR and MRA studies performed on 78 adult patients with acute and subacute stroke were retrospectively reviewed and correlated with the clinical records. RESULTS: There were 50 acute and 28 subacute infarctions in our series. Five of 78 MRA exams (6%) were nondiagnostic. Sixty examinations (80%) were positive for stenosis or occlusion. The distribution of stenotic or occlusive vascular lesions correlated with the location of infarction in 56 of the 60 positive cases (93%). MRA provided information not obtained from the MR images in 40 cases (55%). One hundred four individual vessels in 8 patients who underwent conventional cerebral angiography were compared with the MRA appearance. The MRA interpretations correlated with the conventional angiographic evaluations for 90 vessels (87%). CONCLUSIONS: Vascular lesions demonstrated on intracranial MRA show a high correlation with infarct distribution. MRA provides information adjunctive to conventional MR in a majority of cases. We conclude that MRA is an important component of the complete evaluation of brain infarction.

Original languageEnglish
Pages (from-to)901-908
Number of pages8
JournalAmerican Journal of Neuroradiology
Volume15
Issue number5
StatePublished - 1994
Externally publishedYes

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