Document Detail

Leptomeningeal collateral and cerebral hemodynamics in patients with ICA and MCA steno-occlusion.
MedLine Citation:
PMID:  20712925     Owner:  NLM     Status:  In-Data-Review    
METHODS: Sixty-eight patients with unilateral ICA or MCA stenosis or occlusion were enrolled. Correlations between hyperintense vessel (HV) on FLAIR images and hemodynamic status measured by quantitative single-photon emission computed tomography data were evaluated in four groups: affected (A) and non-affected (B) hemispheres in HV-positive patients, and affected (C) and non-affected (D) hemispheres in HV-negative patients.
RESULTS: The presence of HV was most frequently seen on affected hemispheres in patients with MCA and ICA occlusions. HV was significantly higher in the anterior communicating artery (AcomA) (-), posterior communicating artery (PcomA) (-) group than in other groups, which included either or both AcomA and PcomA (P = 0·008). The presence of HV had a significant correlation with transdural anastomosis (P = 0·046) and LMV (P = 1·64×10(-9)). No significant difference was observed in resting regional cerebral blood flow among the four groups. Vascular reserve in group A was significantly less compared to other groups (P = 0·021).
CONCLUSIONS: HV is related to the hemisphere with severe ICA and MCA steno-occlusion when the circle of Willis is insufficient. The HV-positive hemisphere on the steno-occlusive side shows a lower vascular reserve than that in the contralateral hemisphere or HV-negative hemispheres.
Masatou Kawashima; Tomoyuki Noguchi; Yusuke Yakushiji; Yukinori Takase; Toshio Matsushima
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Publication Detail:
Type:  Journal Article     Date:  2010-08-16
Journal Detail:
Title:  Neurological research     Volume:  33     ISSN:  1743-1328     ISO Abbreviation:  Neurol. Res.     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7905298     Medline TA:  Neurol Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  307-13     Citation Subset:  IM    
Department of Neurosurgery, Faculty of Medicine, Saga University, Japan.
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