Diagnosis of Vertebral Artery Ostial Stenosis on Contrast-Enhanced MR Angiography: Usefulness of a Thin-Slab MIP Technique.
10.13104/jksmrm.2011.15.1.77
- Author:
Sun Mi KIM
1
;
Deok Hee LEE
;
Jin Woo CHOI
;
Byung Se CHOI
;
Hyun Sin IN
Author Information
1. Department of Radiology, Kyung Hee University Hospital-Gangdong, School of Medicine, Kyung Hee University, Seoul, Korea.
- Publication Type:Note
- Keywords:
Vertebral artery ostial stenosis;
Contrast-enhanced MRA;
Thin-slab MIP technique
- MeSH:
Constriction, Pathologic;
Ischemia;
Magnetic Resonance Angiography;
Vertebral Artery
- From:Journal of the Korean Society of Magnetic Resonance in Medicine
2011;15(1):77-81
- CountryRepublic of Korea
- Language:English
-
Abstract:
It is a well-known clinical fact that contrast-enhanced magnetic resonance angiography exaggerates vertebral arterial ostial stenosis and sometimes shows pseudostenosis. Considering the clinical significance of a lesion in the posterior circulation ischemia, the importance of an accurate imaging diagnosis of ostial stenosis should not be underestimated. We were able to differentiate pseudostenosis of the ostium from true stenosis using thin-slab maximum-intensity-projection(MIP) images which are thought to be helpful for minimizing standard full thickness MIP images.
