Angiogram injections using electrocardiographic synchronization

A method comprising:

• receiving, by one or more processors of an injection system and from one or more sensors, a first group of one or more signals indicating a current volume of injection fluid dispensed from a fluid reservoir at a first time;
• determining, by the one or more processors and based on the first group of one or more signals, that a first difference between a dispensed volume limit and the current volume of the injection fluid dispensed from the fluid reservoir at the first time is less than a necessary volume of fluid required to complete both a systolic injection phase and a diastolic injection phase;
• and
• responsive to determining that the first difference is less than the necessary volume of fluid required to complete both the systolic injection phase and the diastolic injection phase, refraining from performing each of the systolic injection phase and the diastolic injection phase even if the first difference is enough to complete the systolic injection phase.

A non-transitory computer-readable storage medium containing instructions that, when executed, cause one or more processors to:

• calculate a difference between a dispensed volume limit and a volume of injection fluid previously dispensed from a fluid reservoir of an injection system;
• prior to performing a systolic injection phase, verify that the calculated difference is not less than a volume of injection fluid required to perform both the systolic injection phase and a subsequent diastolic injection phase;
• and
• control the injection system to perform both the systolic injection phase and the subsequent diastolic injection phase only in response to verifying that the calculated difference is not less than the volume of injection fluid required to perform both the systolic injection phase and the subsequent diastolic injection phase;
• a wherein in response to failing to verify that the calculated difference is not less than the volume of injection fluid required to perform both the systolic injection phase and the subsequent diastolic injection phase, neither the systolic injection phase nor the subsequent diastolic injection phase are performed even if the calculated difference is sufficient to perform the systolic injection phase.