Asymptomatic middle cerebral artery stenosis diagnosed by magnetic resonance angiography. Neuroradiology 2004 Jan;46(1):49-53
Date
12/05/2003Pubmed ID
14655032DOI
10.1007/s00234-003-1120-zScopus ID
2-s2.0-10744221257 (requires institutional sign-in at Scopus site) 9 CitationsAbstract
We reviewed 1440 MRA studies to identify patients with middle cerebral artery stenosis (MCAS). We identified 99 cases, and after reviewing the clinical records, classified 28 as asymptomatic MCAS (AMCAS), a prevalence of 2%. Suspected stroke was the most frequent indication for MRA. Follow-up was available for 21, mean 46.7 months (range 2.4-75.6 months). One stroke occurred in the AMCAS territory (5%), other strokes in five patients (24%). There were five deaths in patients with MCAS; age > 69 (P = 0.045) was the only associated risk factor. This study suggests that patients in whom MRA is performed and shows AMCAS may be at increased risk of strokes in any vascular distribution or of death.
Author List
Zaidat OO, Zahuranec DB, Ubogu EE, Fernandes-Filho JA, Suárez JI, Sunshine JL, Tarr RW, Mirarchi S, Nour SG, Selman WR, Landis DMMESH terms used to index this publication - Major topics in bold
Age FactorsAged
Aged, 80 and over
Cerebral Arterial Diseases
Constriction, Pathologic
Female
Follow-Up Studies
Humans
Infarction, Middle Cerebral Artery
Magnetic Resonance Angiography
Male
Middle Aged
Prognosis
Risk Factors
Stroke