Fig. 1

Feature traking analysis in a patient with β-thalassaemia major (A, B) Analysis of cardiac magnetic resonance imaging feature tracking strain of short-axis and four-chamber cine images. Color map and curve of (C, D) global longitudinal strain (GLS), (E, F) global circumferential strain (GCS), and (G, H) global radial strain (GRS) in a patient with thalassaemia major with preserved left ventricular ejection fraction