Measurement of biventricular septal-to-free wall diameters using sonomicrocrystals.
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.
Yamashita
H
H
First Department of Internal Medicine, Asahikawa Medical College, Japan.
Onodera
S
S
Morimoto
H
H
Imamoto
T
T
Obara
A
A
Tanazawa
S
S
Takashio
T
T
Inoue
H
H
Omiya
H
H
D000818:Animals; D004285:Dogs; D006321:Heart / Q000033:anatomy & histology* / Q000502:physiology; D006346:Heart Septum / Q000033:anatomy & histology*; D006352:Heart Ventricles; D011312:Pressure; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods*