Table 2. Quantitative measures of LV function and strain.
| Parameters | SegBH, mean ± SD | RTCSCineMoCo | RTCSCine | |||||
|---|---|---|---|---|---|---|---|---|
| Mean ± SD | P value* | r | Mean ± SD | P value* | r | |||
| LVEF (%) | 57.4±13.7 | 57.3±13.1 | 0.837 | 0.985 | 55.6±13.1 | <0.001‡ | 0.963 | |
| LVEDV (mL) | 125.0±46.7 | 126.1±45.9 | 0.164 | 0.992 | 126.2±47.1 | 0.283 | 0.984 | |
| LVESV (mL) | 56.2±37.1 | 56.5±36.4 | 0.587 | 0.995 | 59.0±38.0 | <0.001‡ | 0.991 | |
| LVSV (mL) | 68.8±23.5 | 69.6±22.9 | 0.163 | 0.983 | 67.2±22.6 | 0.058 | 0.953 | |
| LVM (g) | 91.2±32.0 | 90.7±33.2 | 0.457 | 0.987 | 85.8±33.9 | <0.001‡ | 0.946 | |
| GRS (%) | 29.0±11.4 | 27.9±10.4 | 0.022† | 0.944 | 26.3±10.1 | <0.001‡ | 0.917 | |
| GCS (%) | −17.0±4.8 | −16.2±4.3 | <0.001† | 0.952 | −15.4±4.3 | <0.001‡ | 0.922 | |
| GLS (%) | −15.8±4.0 | −11.7±3.9 | <0.001† | 0.803 | −10.2±2.9 | <0.001‡ | 0.712 | |
| TPSR (ms) | 303.8±42.2 | 300.4±45.7 | 0.348 | 0.785 | 299.1±43.6 | 0.175 | 0.789 | |
| TPSC (ms) | 303.4±42.8 | 299.9±45.9 | 0.308 | 0.808 | 299.5±44.6 | 0.308 | 0.750 | |
| TPSL (ms) | 317.4±53.8 | 306.6±55.6 | 0.114 | 0.766 | 305.0±55.8 | 0.011‡ | 0.753 | |
Measurements of RTCSCineMoCo and RTCSCine were analyzed using SegBH as a reference standard. *, P values were obtained by paired t-test; †, P<0.05, RTCSCineMoCo versus SegBH; ‡, P<0.05, RTCSCine versus SegBH. GCS, global circumferential strain; GLS, global longitudinal strain; GRS, global radial strain; LV, left ventricular; LVEDV, left ventricular end-diastolic volume; LVEF, left ventricular ejection fraction; LVESV, left ventricular end-systolic volume; LVM, left ventricular mass; LVSV, left ventricular stroke volume; r, correlation coefficient; RTCSCine, real-time cine imaging with compressed sensing; RTCSCineMoCo, real-time cine imaging combines compressed sensing reconstruction and retrospective fully automated respiratory motion correction; SD, standard deviation; SegBH, segmented acquisition with retrospective electrocardiogram gating and breath-hold; TPSC, time to peak strain in circumferential; TPSL, time to peak strain in longitudinal; TPSR, time to peak strain in radial.