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RT Journal Article
SR Electronic
T1 Two-Layered Susceptibility Vessel Sign and High Overestimation Ratio on MRI Are Predictive of Cardioembolic Stroke
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 65
OP 67
DO 10.3174/ajnr.A5865
VO 40
IS 1
A1 Bourcier, R.
A1 Derraz, I.
A1 Bracard, S.
A1 Oppenheim, C.
A1 Naggara, O.
A1 
YR 2019
UL http://www.ajnr.org/content/40/1/65.abstract
AB SUMMARY: In a prospective study among patients in the THRombectomie des Artères Cerebrales trial, we analyzed the diagnostic accuracy of 2 imaging biomarkers, the 2-layered susceptibility vessel sign and a high overestimation ratio, obtained on pretreatment brain T2* sequences, to identify cardioembolic stroke etiology (107/260 patients). In combination, these 2 biomarkers, on 1.5T or 3T systems (159 and 101 patients, respectively), demonstrated high specificity (0.77 at 1.5T and 1 at 3T) and their simultaneous presence is highly associated with cardioembolism.CEScardioembolic strokeHORhigh overestimation ratioNPVnegative predictive valueoverRoverestimation ratioPPVpositive predictive valueSVSsusceptibility vessel signTHRACETHRombectomie des Artères CerebralesTL-SVS2-layered susceptibility vessel sign