Normal Values of left ventricular Myocardial Deformation Assessed by Cardiovascular Magnetic Resonance Feature Tracking in a Healthy Egyptian Population

Abstract

Background : Cardiovascular diseases (CVDs) is considered the most frequent cause of death worldwide responsible for about 17.9 million death in 2019; this study aimed to assess the left ventricle reference values of the global strain of Egyptian subjects using cardiovascular magnetic resonance (CMR) and to evaluate the effect of age, gender, BMI and BSA on strain measurements. Patients and methods : 50 healthy adult Egyptian volunteers who met the inclusion criteria were prospectively recruited from Aswan Heart center and Al-Hussein university hospital in Egypt. CMR exams were performed. Feature tracking global longitudinal strain from two long-axis SSFP cine images while circumferential and radial strains are derived from the short-axis cine images. Global LV strain measurements were analyzed using commercial cardiovascular post-processing software. Results : We analyzed the peak global circumferential, longitudinal and radial strain using feature tracking in 50 healthy Egyptian subjects. LV Mean global circumferential, longitudinal and radial strain values in healthy Egyptians were recorded and correlated with effect of age and gender. LV strain values are higher in females than males. No signi fi cant association between age and LV global strains in our study, which needs further studies. Conclusion : Using a CMR-FT with great consistency and a sizable healthy Egyptian population of participants, our work gives reference values for heart deformation. In a typical clinical situation, these values may be utilised to assess LV myocardial function or the early beginnings of failure. The LV global circumferential and longitudinal strain readings from CMR-FT were greater in females than in males.