Arterial CTA Protocols
Power Injector Setup
Contrast Volume (mL)
85 mL
Flow Rate (mL/s)
4.5 mL/s
Iodine Concentration
350 mg I/mL
Saline Flush (mL)
40 mL
Injection Duration
18.9 s
Iodine Delivery Rate
1.58 g I/s
Total Iodine Mass
29.8 g I
Aortic Arch Arrival
14.8 s
Full Body Pro-Vascular View
Anatomically Accurate Projections
Elapsed Time:
0.0 s
Stage 1 / 4
0.0 s
Peripheral Venous Injection
Contrast enters antecubital arm vein via power injector.
Clinical Transit Timeline Exact Sec
Accurate Practical Rule:
Arm-to-Aorta transit time is ~14–16s at 4.5 mL/s. Higher flow rate shifts bolus arrival earlier by ~1.5–2.5 seconds.