Figure 4: GE Advantage Windows workstation screen for post-processing CT perfusion data. (A) CTP source image acquired during cine acquisition (Fig. 2A). (B) Arterial, venous and tissue TDC (Fig. 2B). (C) Final Settings window allows the observer to review and confirm the user-defined input parameters before computation of the CTP maps. The user-defined input parameters include the location selected for the arterial and venous function curves, and pre- and post-enhancement cut-off values. The default thresholds for air and bone are shown. (D) Sample CBF map created using these settings.