Table 2.

CMR parameters of the study population.

	STEMI			Controls (n = 42)
	Total (129)	LVEF <55% (n = 85)	LVEF ≥55% (n = 44)
LVEF, %	51 (42–57)*	45 (38–51)†	60 (56–63)‡	63 (59–67)
SV, mL	72.58 ± 17.48*	68.71 ± 16.56†	80.05 ± 16.96‡	83.66 ± 15.03
EDV, mL	150.54 ± 34.13*	159.10 ± 34.25†	134.02 ± 27.41‡	132.50 ± 23.62
ESV, mL	71.9 (57.5–96.3)*	88.4 (71.2–107.0)†	54.8 (43.6–63.9)‡	47.4 (41.1–57.3)
CO, L/min	4.70 ± 1.19*	4.57 ± 1.25†	4.96 ± 1.00†	6.02 ± 1.09
LGE, %	12.04 (5.80–19.82)	17.14 (9.67–24.14)	6.38 (1.88–11.60)‡	–
GRS, %	22.39 ± 6.60*	19.28 ± 4.95†	28.39 ± 5.08†‡	38.54 ± 9.27
GCS, %	−14.11 ± 3.19*	−12.66 ± 2.64†	−16.91 ± 2.11†‡	−20.77 ± 2.78
GLS, %	−11.46 ± 2.64*	−10.64 ± 2.50†	−13.06 ± 2.15†‡	−15.52 ± 2.69

CMR, cardiac magnetic resonance; STEMI, ST-segment elevation myocardial infarction; LVEF, left ventricular ejection fraction; SV, stroke volume; EDV, end-diastolic volume; ESV, end-systolic volume; CO, cardiac output; LGE, late gadolinium enhancement; GRS, global radial strain; GCS, global circumferential strain; GLS, global longitudinal strain.

^*p < 0.05 when compared with the controls between 2 groups (the total STEMI group and the controls).

^†p < 0.05 when compared with the controls among three groups (the STEMI LVEF <55% group, the STEMI LVEF ≥55% group, and the controls).

^‡p < 0.05 when compared with the STEMI (LVEF <55%) group among three groups (the STEMI LVEF <55% group, the STEMI LVEF ≥55% group, and the controls).