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. 2017 Oct;7(5):452–462. doi: 10.21037/cdt.2017.06.11

Figure 1.

Figure 1

Example of two possible CT perfusion protocols. (A) stress first protocol—stress perfusion is completed first followed by a delay of 15–20 minutes and then rest perfusion and coronary CTA; (B) rest first protocol—rest perfusion and coronary CTA is completed first followed by stress perfusion; (C) the images on the right show stress CTP image which shows a perfusion defect throughout the anteroseptal, anterior, and anterolateral wall; (D) the same patient had a normal rest myocardial perfusion image with no defects. CTA, CT angiography; CTP, CT perfusion.