Table 2:

P values from the assessment of TTP, peak opacification, and AUC differences when comparing injection protocols: variable rate and volume with constant duration (2 seconds)*

Rate	TTP Capillary	TTP Arterial	TTP Venous	Peak Capillary	Peak Arterial	Peak Venous	AUC Capillary	AUC Arterial	AUC Venous
Overall	.0334	.0102	.0363	.0009	.0057	.0003	.0004	.0003	<.0001
2–4 mL/s	.9598	.4923	.4592	.1147	.0179	.0020	.1111	.0152	.0002
2–6 mL/s	.1024	.0110	.0302	.0022	.0038	.0002	.0007	.0003	<.0001
2–8 mL/s	.0126	.0041	.0114	.0002	.0011	<.0001	<.0001	<.0001	<.0001
4–6 mL/s	.1117	.0404	.1165	.0503	.4158	.2065	.0171	.0512	.0584
4–8 mL/s	.0139	.0153	.0465	.0034	.1592	.0534	.0018	.0062	.0020
6–8 mL/s	.2680	.6066	.6069	.1678	.5229	.4355	.2423	.2739	.0918

Note:—TTP indicates time-to-peak; AUC, area under curve.
* P values for paired contrasts were not calculated if no overall significant difference of the group was observed.