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MAGNETIC RESONANCE IMAGING IN POSTERIOR CIRCULATION INFARCTION: IMPACT ON DIAGNOSIS AND MANAGEMENT
Author(s) -
DAVIS S. M.,
DONNAN G. A.,
TRESS B. M.,
KIERS L.,
DOWLING R.,
ROSSITER S. C.
Publication year - 1989
Publication title -
australian and new zealand journal of medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.596
H-Index - 70
eISSN - 1445-5994
pISSN - 0004-8291
DOI - 10.1111/j.1445-5994.1989.tb00249.x
Subject(s) - medicine , magnetic resonance imaging , infarction , radiology , abnormality , blood flow , nuclear medicine , cardiology , myocardial infarction , psychiatry
To compare the diagnostic yield of magnetic resonance imaging (MRI) with computed tomography (CT) in posterior circulation infarction, we used proton MRI with a 0.3 Tesla magnet and a 3rd generation CT scanner in 25 patients. Age‐matched controls were compared in a blinded fashion. Seventeen patients (68%) showed relevant pathology on MRI not seen on CT, 11 with normal CT and six with more extensive lesions, chiefly in the brain stem. Evidence of abnormal vertebrobasilar blood flow was seen in 8/25 (32%) of patients, suggested by vascular high intensity signals on MRI. Two tissue and one flow abnormality were seen in the control group. MRI provides additional information concerning infarct site, extent and pathogenesis in posterior circulation infarction.