All the AIFs parameters in the extended digital phantom. MTTbolus is the MTT of the contrast bolus, which is the expected value of the gamma distribution function (α·β). Area under the curve (AUC) is proportional to the contrast dose.

Table 3: All the AIFs parameters in the extended digital phantom. MTT_bolus is the MTT of the contrast bolus, which is the expected value of the gamma distribution function (α·β). Area under the curve (AUC) is proportional to the contrast dose.

Parameter	A	B	C	D	Standard
α_art	2.98450	7.29630	5.36543	4.23924	4.00000
β_art	2.50	0.60	0.88	1.50	1.50
Peak CT value [HU]	370	834	493	696	494
MTT_bolus [s]	7.5	4.4	4.7	6.4	6.0
AUC	3037.3	3037.6	2126.3	4556.2	3037.5