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We developed prototype real-time 3-D intracardiac echocardiography catheters with integrated micromotors, allowing internal oscillation of a low-profile 64-element, 6.2-MHz phased-array transducer in the elevation direction. Components were designed to facilitate rotation of the array, including a low-torque flexible transducer interconnect and miniature fixtures for the transducer and micromotor...
Currently the feedback guidance of intracardiac radiofrequency ablation (RFA) is very limited, offering only a catheter electrode (not tissue) temperature estimation and a means to titrate radiofrequency (RF) power delivery to the tissue. Our “MicroLinear” (ML) forward imaging ultrasound catheter design, now at a true 9F (3mm) in size, has been optimized with several features to simultaneously permit...
We developed prototype catheters for real-time three-dimensional intracardiac echo (4D ICE) imaging. The catheter tips contained a low profile 64-element, 6.2 MHz phased array transducer and integrated micromotor, allowing oscillation of the transducer in the elevation direction. The tips were integrated with two-way deflectable 10 Fr catheters and used in in-vivo animal testing at multiple facilities...
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