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A Phase-Contrast MRI Study of Acute and Chronic Hydrodynamic Alterations after Hydrocephalus Induced by Subarachnoid Hemorrhage.
MedLine Citation:
PMID:  21447028     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To determine acute intracranial hydrodynamic changes after subarachnoid hemorrhage (SAH) via phase-contrast MRI (PC-MRI) analysis of the CSF stroke volume in the aqueduct (SVaq) and the foramen magnum (SVfm). METHODS: A prospective PC-MRI study was performed on 34 SAH patients in the acute and late phase. Data on CSF flow and hemorrhage site were analyzed according to acute or chronic hydrocephalus (HC). RESULTS: In the acute phase, CSF analysis was performed for 31 patients, 12 of whom presented HC. All 12 had an abnormal SVaq; those with communicating HC (n = 7) had an elevated SV and those with noncommunicating HC (n = 5) had a nil SV. None of the patients with a normal SVaq (n = 11) developed acute HC. Intraventricular bleeding led to more cases of acute HC (P = .005), which was communicating in 58% of cases. In the chronic phase, CSF analysis was performed for 27 patients, 7 of whom presented HC. None of these 7 patients displayed a depressed SVaq. CONCLUSION: SAH led to changes in cerebrospinal fluid hydrodynamics in the majority of patients. Acute HC was communicating in most cases, even when there was intraventricular bleeding. In the late phase, all chronic HC were communicating and did not display aqueductal stenosis.
Guillaume Saliou; Gaelle Paradot; Catherine Gondry; Roger Bouzerar; Pierre Lehmann; Marc Etienne Meyers; Daniel Le Gars; Hervé Deramond; Olivier Balédent
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-29
Journal Detail:
Title:  Journal of neuroimaging : official journal of the American Society of Neuroimaging     Volume:  -     ISSN:  1552-6569     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9102705     Medline TA:  J Neuroimaging     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 by the American Society of Neuroimaging.
Service de Neuroradiologie, Centre Hospitalier Universitaire de Bicêtre, Kremlin Bicêtre Cedex, France (GS); Centre Hospitalier et Universitaire et Université de Picardie Jules Vernes Amiens, Service de Biophysique et Traitement de l'Image, Amiens Cedex 1, France (GS, GP, RB, PL, MEM, OB); Service de Neuroradiologie, Centre Hospitalier Universitaire d'Amiens, Amiens Cedex 1, France (CG, PL, HD); and Service de Neurochirurgie, Centre Hospitalier Universitaire d'Amiens, Amiens Cedex 1, France (GP, DLG).
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