Figure 1

Saturated AIF from the higher dose CA injection is shown in blue. The upscaled low dose AIF (volume matched and 1/5 the concentraion of the blue curve), was scaled up by 5 and is shown in red. The AIF obtained using the T1 estimates from the multi-SRT images of the 0.02 mmol/kg scan is shown in black. The peak of the measured AIF from the 00.2 mmol/kg scan is saturated approximately 30% relative to the low dose AIF. The multi-SRT AIF is similar to the low dose AIF.