Abstract #4790
Quantitative assessment of the cortical vessel sign after mechanical stroke treatment
Gnther Grabner 1,2 , Klaus A. Hausegger 1 , Michael Hauser 1 , Sonja M. Obmann 3 , Jrg R. Weber 3 , and Thomas Kau 1
1
Institute of Diagnostic and Interventional
Radiology, General Hospital of Klagenfurt, Klagenfurt,
Carinthia, Austria,
2
Carinthia
University of Applied Sciences, Klagenfurt, Carinthia,
Austria,
3
Department
of Neurology, General Hospital of Klagenfurt,
Klagenfurt, Carinthia, Austria
The cortical vessel sign (CVS) on
susceptibility-weighted images (SWI) is a known
phenomenon in case of ischemic stroke. Here we evaluated
the CVS which is defined by an enhanced visibility of
venous blood vessels quantitatively in 13 patients in
the subacute stage of embolic stroke. The CVS evaluation
was based on automatic vessel segmentation and the
definition of 3 dimensional ROIs. While the CVS may
occasionally be positive in the region of irreversible
ischemic brain infarction, automatic quantitative CVS
analysis showed no significant difference between paired
vascular territories in the subacute stage after
mechanical thrombectomy.
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