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Abstract
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.
ABBREVIATIONS:
- CES
- cardioembolic stroke
- HOR
- high overestimation ratio
- NPV
- negative predictive value
- overR
- overestimation ratio
- PPV
- positive predictive value
- SVS
- susceptibility vessel sign
- THRACE
- THRombectomie des Artères Cerebrales
- TL-SVS
- 2-layered susceptibility vessel sign
- © 2019 by American Journal of Neuroradiology
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