Myocardial regional blood flow: quantitative measurement by computer analysis of contrast enhanced echocardiographic images.
Mor-Avi V, David D, Akselrod S, Bitton Y, Choshniak I. Myocardial regional blood flow: quantitative measurement by computer analysis of contrast enhanced echocardiographic images. Ultrasound Med Biol. 1993; 19(8):619-33.