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Abstract #2187

Comparison of PWI, DWI, and clinical outcome for suspected stroke

Neil Chatterjee 1 , Shyam Prabhakaran 2 , Sameer Ansari 1 , and Timiothy Carroll 1

1 Radiology, Northwestern University, Chicago, IL, United States, 2 Neurology, Northwestern University, Chicago, IL, United States

Fully automated methods were used to analyze perfusion weighted (PWI) and diffusion weighted (DWI) MR images in a cohort of 109 patients suspected of having a stroke or transient ischemic attack and compared to modified Rankin Scale (mRS) collected after 3 months. Compared to a referece group with an mRS of 0, we found that DWI measurements were only significantly different in patients with an mRS of 4, but PWI measurements were different across a greater range of mRS scores. This may indicate that PWI may be a better predictor for intermediate outcomes.

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