Classic pattern of DWI-PWI mismatch

Representative case with classic pattern of mismatch.
(A) Diffusion weighted-image (DWI).
(B) DWI abnormal lesion (shown in red) and hypoperfusion lesion (shown in green) superimposed on DWI.
(C) DWI abnormal lesion and hypoperfusion lesion with brain image (DWI) removed.

PWI: perfusion-weighted image.

Reproduced with permission from: Ogata T, Nagakane Y, Christensen S, et al. A topographic study of the evolution of the MR DWI/PWI mismatch pattern and its clinical impact: a study by the EPITHET and DEFUSE Investigators. Stroke 2011; 42:1596. Copyright © 2011 Lippincott Williams & Wilkins.

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Classic pattern of DWI-PWI mismatch