Dynamic estimation of myocardial deformation using ultrasound RF-data: A preliminary study.

Abstract

Analytic minimization (AM) is one of elastography algorithms. In this study, a healthy male volunteer lying in lateral position was examined by an ultrasound system. The left ventricular long-axis view of the heart was acquired and the ultrasound radio frequency (RF) data were stored for estimation of myocardial deformation. The methods of AM and Linear polynomial curve fitting were used to calculate the displacement and strain, respectively. The myocardial deformation was dynamically estimated. The strain maps at approximately 50ms, 140ms, and 240ms after the beginning of the ventricle systole indicate the contraction of different myocardial segments. This study provides a potential method to assess the survival myocardium in patients with myocardial infarction in future study.