Ultrasound Catheter Imaging A Functional Overview

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Abstract
Mechanically driven ultrasound imaging catheters (UICs) using single, focused elements are examples of a class of emerging catheter tip ultrasound devices beginning to be used for intravascular imaging. To develop a practical, cost effective imager that is both a good catheter from the interventionalist's standpoint and provides high quality images, we have had to develop new materials, design methods, and fabrication techniques. Present day diagnostic catheter's now being used widely by interventional radiologists were re-examined, and modified for acoustic imaging. Design philosophies that embodied the conventional wisdom of 20 or so years of ultrasound transducer manufacture had to be dissected, and in some cases discarded, and fabrication techniques more familiar to the semiconductor industry applied to the manufacture of intricate, miniature ultrasound crystals.

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