Abstract #0602

Stroke Volume Evolution Following Endovascular Therapy on DWI and FLAIR

Christian Federau¹, Soren Christensen¹, Michael Mlynash¹, Jenny Tsai¹, Sun Kim¹, Greg Zaharchuk¹, Matus Straka¹, Nishant Mishra¹, Maarten Lansberg¹, and Greg Albers¹

¹Stanford University, Stanford, CA, United States

We studied the evolution of the infarct volume between an early post-revascularization scan (within 24 h of symptom onset) and day 5 in patients of the CRISP and DEFUSE 2 cohort studies. On the early post-revascularization scan, FLAIR lesions were smaller compared to DWI, but were larger at day 5. The early post-revascularization stroke volume on DWI, compared to FLAIR, was closer, and correlated better with the day 5 DWI and FLAIR lesion volumes. Together, our findings suggest that DWI is a better early surrogate marker of stroke volume.

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