A Non-Invasive Method for Two Dimensional Instantaneous Observation of Moving Cardiac Structures
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In this chapter an ultrasonic scanner with twenty adjacent elements is described. The system has been designed to evaluate a non-invasive technique for visualizing moving cross-sections of the heart, particularly the walls of the ventricle. Fast electronic switching from one element to another and appropriate display of the echoes results in the instantaneous display of a moving structure. In vitro measurements are discussed. In vivo measurements are illustrated in a case of severe mitral stenosis.
KeywordsMitral Valve Left Ventricular Outflow Tract Sound Pulse Calibration Probe Ultrasonic Scanner
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