TY - JOUR 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. SP - 65 LP - 67 DO - 10.3174/ajnr.A5865 VL - 40 IS - 1 AU - R. Bourcier AU - I. Derraz AU - S. Bracard AU - C. Oppenheim AU - O. Naggara A2 - , Y1 - 2019/01/01 UR - http://www.ajnr.org/content/40/1/65.abstract N2 - 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 ER -