Global and regional cardiac magnetic resonance feature tracking left ventricular strain analysis in assessing early myocardial disease in β thalassemia major patients

Table 4 Comparison of cardiac magnetic resonance imaging parameters and LV global myocardial strain values in β-thalassemia major patients without MIO and control group

Parameter	Without MIO group (n = 46)	Control group (n = 20)	P-value
LV EF (%)	60.3 ± 4.75	65.0 ± 4.0	0.014^*
LV EDVI (mL/m²)	106.6 ± 20.6	79.6 ± 11.3	0.000^*
LV ESVI (mL/m²)	42.5 ± 10.8	28.0 ± 5.9	0.000^*
LV SV (mL)	105.0 ± 19.8	102.3 ± 14.9	0.679
LV GLS (%)	–17.3 ± 2.3	–18.3 ± 1.2	0.420
LV GCS (%)	–15.8 ± 2.1	–17.9 ± 1.3	0.012^*
LV GRS (%)	25.5 ± 4.8	30.9 ± 4.4	0.007^*

Values are presented as mean ± standard deviation. Student t-test was used to test significance
LV Left ventricle, MIO Myocardial iron overload, EF Ejection fraction, EDVI End-diastolic volume index, ESVI End-systolic volume index, SV Stroke volume, GLS Global longitudinal strain, GCS Global circumferential strain, GRS Global radial strain
^*P < 0.05

ISSN: 2586-7296