January 1, 1979Catheterization and Cardiovascular Diagnosis28 citations
Intracardiac M‐mode echocardiography for continuous left ventricular monitoring: Method and potential application
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Key Result
A novel catheter-mounted echocardiographic probe successfully provided continuous left ventricular cavity measurements and clear definition of motion patterns of the mitral valve and ventricular walls.
Structured PICO
Does a catheter-mounted echocardiographic probe allow for continuous monitoring of left ventricular size and motion in humans?
P
Population
Humans
I
Intervention
Catheter-mounted echocardiographic probe for intracardiac M-mode echocardiography
O
Outcome
Continuous recording of left ventricular cavity dimensions and wall motionsurrogate
A novel catheter-mounted echocardiographic probe demonstrates feasibility for continuous intracardiac monitoring of left ventricular size and motion.
Abstract
Because no accurate and readily applied method exists for continuous recording of left ventricular cavity dimensions and wall motion in man, we designed a catheter-mounted echocardiographic probe. The purpose of this report is to describe the instrumentation, technique, limitations, complications and preliminary observations employing the probe in humans. The echo transducer built into a cardiac allowed positioning in the right heart under fluoroscopy. The echo signals permitted continuous left ventricular cavity measurements at rest and during maneuvers. Our results suggest that intracardiac echo may be able to provide clear definition of motion patterns of the mitral valve and left ventricular walls. The ultrasonic catheter is an instrument that potentially offers a new technique for continuous monitoring of left ventricular size and motion.