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. 2021 Jan 7;23:3. doi: 10.1186/s12968-020-00696-y

Fig. 1.

Fig. 1

Example of presence of splenic switch-off sign (SSO) (*) with signal intensity curves. a Stress perfusion, b rest perfusion. SMR  spleen-myocardium intensity ratio, SIR stress-to-rest intensity ratio for spleen