Table 2. Relationship between VCE, patient characteristics and test bolus parameters.

Parameters	r	P value
Age (years)	0.52	0.0001*
BSA (m2)	−0.61	0.0001*
Heart rate (bpm)	0.60	0.616
PCE at test bolus (HU)	0.60	0.0001*
TTP at test bolus (s)	0.17	0.148

*, P<0.05. BSA, body surface area; PCE, peak contrast enhancement; TTP, time-to-peak; VCE, vessel contrast enhancement.