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LSI of cerebral hypoperfusion during acupuncture. (a) Photograph of mouse brain with scalp stripped; (b) LSI images at different time points (0-25 min after acupuncture). Five arrows in the first image indicate the same blood vessels as that in Fig. 4, and the same three ROIs were assigned for the calculation of CBF; (c) Fused image of PAT and LSI; (d) CBF over time in the three ROIs.
