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Forward looking (FL) imaging catheters would be an important tool for several intravascular ultrasound (IVUS) and intracardiac echocardiography (ICE) applications. Single chip capacitive micromachined ultrasonic transducer (CMUT) arrays fabricated on front-end CMOS electronics with simplified electrical interconnect have been previously developed for highly flexible and compact catheters. In this...
Synthetic phased array based high frequency imaging devices on catheter probes suffer from low SNR and limited penetration due to small active transducer area and frequency-dependent tissue attenuation. Although using signal averaging improves the SNR, it increases data collection time which degrades real time imaging performance. Temporally coded pulses emit high energy to the imaging medium and...
An intravascular ultrasound (IVUS) catheter that can provide forward-viewing volumetric ultrasound images would be an invaluable clinical tool for guiding interventions in coronary arteries for treatment of chronic total occlusions (CTOs) and for helping stent deployment. Single-chip integration of front-end electronics with CMUTs is highly desirable for reduced interconnect complexity, miniaturization,...
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