System and methods for cardiac cycle selection

A system, comprising:

• a processor;
• and
• non-transitory memory storing instructions executable by the processor to:
• obtain a sequence of medical image frames of a heart of a patient over a plurality of cardiac cycles, each medical image frame in the sequence depicting a same apical view of the heart;
• segment, based on output from a timing model trained to generate output usable to label each frame of the sequence by cardiac cycle subphase, the sequence of medical image frames into a plurality of sets of medical image frames, each set corresponding to a respective cardiac cycle of the plurality of cardiac cycles;
• determine, by applying a decision logic to each set of medical image frames, a suitability of each set of medical image frames for performing an automated measurement, the suitability of each set of medical image frames determined based on each cardiac cycle subphase label of each medical image frame of the sequence;
• select, based on the suitability of each set of medical image frames for performing the automated measurement, one or more sets of medical image frames;
• and
• perform the automated measurement on only the selected one or more sets of medical image frames.

A method, comprising:

• obtaining a sequence of medical image frames of a heart of a patient over a plurality of cardiac cycles, each medical image frame in the sequence depicting a same apical view of the heart;
• entering the sequence of medical image frames as input to a timing model trained to generate output usable to label each frame of the sequence by cardiac cycle subphase;
• labeling each medical image frame of the sequence based on the output from the timing model to generate a sequence of labeled medical image frames, wherein each medical image frame is labeled with a respective cardiac cycle subphase selected from a plurality of cardiac cycle subphases that includes atrial systole, diastasis, rapid inflow, isovolumetric relaxation (IVR), ejection, and isovolumetric contraction (IVC);
• segmenting the sequence of labeled medical image frames into a plurality of sets of labeled medical image frames, each set of labeled medical image frames corresponding to a respective cardiac cycle;
• determining, based on the plurality of sets of labeled medical image frames, a suitability of each set of labeled medical image frames for performing an automated measurement, including determining that a first set of labeled medical image frames representing a first cardiac cycle is suitable based on:
• determining that each cardiac cycle subphase of the plurality of cardiac cycle subphases is included in the first set of labeled medical image frames, and determining that a duration of diastole is not outside a threshold range of a duration systole for the first cardiac cycle;
• and
• performing the automated measurement only on medical image frames of the sequence of medical image frames included in one or more sets of labeled medical image frames determined to be suitable.