Patent ID: 11915347
Assignee: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Field: Medical technology (Instruments)
Classification: CPC G  A | IPC A  G

Claim 3:
4. The method of claim 1, wherein the determining a plurality of cardiac motion parameters corresponding to at least a portion of the plurality of cardiac motion phases based on the plurality of projection data includes:
for each cardiac motion phase of the at least a portion of the plurality of cardiac motion phases,
determining a first mean absolute difference (MAD) between a first cardiac image of a first cardiac motion phase that occurs before the each cardiac motion phase and a cardiac image of the each cardiac motion phase;
determining a second mean absolute difference (MAD) between a second cardiac image of a second cardiac motion phase that occurs after the each cardiac motion phase and the cardiac image of the each cardiac motion phase; and
designating a sum of the first mean absolute difference (MAD) and the second mean absolute difference (MAD) as the cardiac motion parameter corresponding to the each cardiac motion phase.