Tmax_by_MRI_perfusion_in_cerebral_artery_occlusion.jpg

Summary

Description	English: Perfusion MRI displaying T _max in a patient with left MCA occlusion at 5 h. The volume of T _max > 6 s is estimated to be 56 mL.
Date	30 September 2014
Source	(2014). "Vessel Occlusion, Penumbra, and Reperfusion â€“ Translating Theory to Practice". Frontiers in Neurology 5 . DOI : 10.3389/fneur.2014.00194 . ISSN 1664-2295 . ( CC-BY-4.0 )
Author	Bruce C. V. Campbell, Geoffrey A. Donnan and Stephen M. Davis. Uploaded by Mikael Häggström
Other versions	Original caption: (A) MRA and T _max in a patient with left MCA occlusion at 5 and 24 h. Despite persistent occlusion, the volume of T _max > 6 s has reduced from 56 to 0 mL due to improved collateral supply. (B) Post-reperfusion hyperperfusion indicated by increased CBV (left), CBF (middle), and reduced T _max (right) in a patient with recent reperfusion of left MCA occlusion. (C) MRI diffusion (pink) and perfusion (T _max > 6 s, green) imaging 24 h post-stroke onset showing persistent hypoperfused tissue, which was contributing to the patient’s clinical deficit but had not developed diffusion restriction.

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