このエントリーをはてなブックマークに追加
ID 25574
file
creator
Ohba, Shinji
Shibukawa, Masaaki
subject
ADC value
cerebral edema
dural arteriovenous fistulas
endovascular treatment
venous congestion
NDC
Medical sciences
abstract
Apparent diffusion coefficient (ADC) values at magnetic resonance imaging (MRI) are useful to distinguish vasogenic and cytotoxic edema due to cerebovascular diseases. Dural arteriovenous fistulas (DAVFs) with retrograde leptomeningeal venous drainage may cause cerebral edema by venous congestion. We report herein the course of ADC values of cerebral edema before and after endovascular treatment in DAVFs. A 65-year-old woman with transverse-sigmoid (T-S) sinus DAVFs with retrograde leptomeningeal venous drainage presented with severe edema in cerebellar hemisphere and brainstem. In preoperative MRI, increased ADC values were observed in the edema area. The isolated sinus was obliterated completely by transvenous embolization. On the following day after treatment, the ADC values in cerebral edema area increased slightly without any new neurological deficits and improved at 1 week later. Rapid resolution of venous congestion due to DAVFs may cause a slight, transient progression of vasogenic edema.
journal title
Clinical Neurology and Neurosurgery
volume
Volume 110
issue
Issue 4
start page
400
end page
403
date of issued
2008-04
publisher
Elsevier B.V.
issn
0303-8467
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2007 Elsevier B.V.
relation is version of URL
http://dx.doi.org/10.1016/j.clineuro.2007.12.010
department
Graduate School of Biomedical Science