Intracardiac ultrasound measurement of volumes and ejection fraction in normal, infarcted and aneurysmal left ventricles using a 10-mHz ultrasound catheter
Intracardiac ultrasound measurement of volumes and ejection fraction in normal, infarcted and aneurysmal left ventricles using a 10-mHz ultrasound catheter. Circulation. 1994; 90:1481-91.