Doppler myocardial imaging

Abstract

Doppler myocardial imaging is a new ultrasound technique which allows integration of intramural velocities, accelerations and regional myocardial reflectivity. In vitro investigations have determined the accuracy and reproducibility of measurements made using this technique. Initial in vitro animal studies and patient studies have confirmed its areas of potential clinical applicability. These include the evaluation of regional intramural function during both systole and diastole, changes in myocardial reflectivity with ischaemia and the evaluation of regional myocardial perfusion in conjunction with a left heart ultrasound contrast agent. In the clinical environment, it is already being used as an adjunct to electrophysiological techniques in studying normal and abnormal ventricular pulsation.