Power injector having calibrated pressure monitoring functionality

A method of operation for a power injector comprising:

• installing a syringe on a power injector, wherein said syringe comprises a syringe plunger and is in an empty state for said installing step, wherein said installing step is repeated a plurality of times, and wherein for each execution of said installing step on said power injector, said method further comprises the steps of:
• executing a fill sequence after said installing step, while said syringe is installed on said power injector, and using said power injector, said executing a fill sequence step comprising:
• executing a first moving step comprising moving said syringe plunger with said syringe being in said empty state, while installed on said power injector, and using said power injector, wherein said syringe remains in said empty state throughout said first moving step;
• acquiring a reference value from said first moving step;
• and
• loading a fluid into said syringe after said installing step and after said acquiring step, said loading step comprising executing a second moving step comprising moving said syringe plunger using said power injector;
• discharging said fluid from said syringe after a completion of said fill sequence, while said syringe is installed on said power injector, and comprising executing a third moving step comprising moving said syringe plunger using said power injector;
• and
• monitoring said discharging step using said reference value associated with said fill sequence.

A power injector comprising:

• a syringe plunger driver comprising a motorized drive source;
• a syringe comprising a syringe plunger;
• and
• power injector control logic comprising a syringe fill protocol and a pressure monitoring protocol, wherein said pressure monitoring protocol comprises a pressure calibration factor, and wherein said power injector control logic is configured to update said pressure calibration factor on each execution of said syringe fill protocol.