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Measurement of biventricular septal-to-free wall diameters using sonomicrocrystals
H Yamashita1, S Onodera, H Morimoto
1First Department of Internal Medicine, Asahikawa Medical College, Japan.
The American Journal of Physiology
|September 1, 1992
Abstract:
An ultrasonic system for the measurement of biventricular septal-to-free wall internal diameters in the dog was described. The ventricular endocardial ultrasonic microcrystals were implanted via the left and right atrial appendages and arranged in a straight line, with minimal invasion of the myocardium and pericardium. Reliable signals were obtained during right ventricular pressure overload and septal myocardial ischemia.