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Fig. 1 | Journal of Biomedical Science

Fig. 1

From: Machine learning-based segmentation of ischemic penumbra by using diffusion tensor metrics in a rat model

Fig. 1

Definitions of the Ischemic Penumbra (IP), Infarct core (IC), and Normal Tissue (NT) in a Rat Subjected to Permanent Middle Cerebral Artery Occlusion (pMCAO). IC was defined as the blue area in the mean diffusivity (MD) map (a) and perfusion deficit at 0.5 h after pMCAO is shown in (b). Perfusion–diffusion mismatch is illustrated in (c) and (d), where the red region indicates the IC and the green region indicates the IP. The NT was defined as the region in the ipsilateral hemisphere except for the IP and IC [white in (d)]. d Indicates the “label” for the IC, IP, and NT

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