Fig. 4

Strain: ROC Analysis. ROC curves for GRS, GCS and GLS comparing a All LVNC phenotype patients and healthy subjects ; b Subgroup A vs. B (LVNC phenotype patients with normal LV volumetrics and healthy subjects with normal LV volumetrics); c Subgroup A vs. C (LVNC phenotype patients with normal LV volumetrics and healthy subjects with normal LV volumetrics not meeting any CMR diagnostic criteria for LVNC); d Subgroup A vs. D (LVNC phenotype patients with normal LV volumetrics and healthy subjects with normal LV volumetrics meeting at least one of the CMR diagnostic criteria for LVNC). ROC = receiver operating characteristic; GRS = global radial strain; GCS = global circumferential strain; GLS = global longitudinal strain; LVNC = left ventricular non-compaction cardiomyopathy; LV = left ventricle; CMR = cardiovascular magnetic resonance