Injection fluid quantification

A method for quantifying how much contrast fluid is injected into a patient by a powered fluid injector, comprising:

• receiving, at a controller of the powered fluid injector, a command from a user to begin dispensing the contrast fluid;
• determining, with the controller, whether a hemodynamic pressure signal is present from a pressure sensor positioned in fluidic connection with the patient's vasculature;
• dispensing, with the powered fluid injector, a quantity of the contrast fluid in response to the command;
• and
• determining, with the controller, an injection quantity representing an amount of the contrast fluid that is injected into the patient by adding, with the controller, the quantity of the contrast fluid to the injection quantity if the hemodynamic pressure signal is present in temporal proximity to when the quantity of the contrast fluid is dispensed and by
• refraining from adding, with the controller, the quantity of the contrast fluid to the injection quantity if the hemodynamic pressure signal is not present in temporal proximity to when the quantity of the contrast fluid is dispensed.