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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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Title: Reduced-wire Readout Systems for High Frequency Intravascular Ultrasound Imaging
Committee:
Dr. Ghovanloo, Advisor
Dr. Rincon-Mora, Chair
Dr. Ayazi
Dr. Degertekin
Abstract: The objective of the proposed research is to design and develop the interface electronics for intravascular ultrasound imaging systems and reduce the number of interconnections to integrate the SoC on the guide wire. We propose a system-on-a-chip (SoC) for a capacitive micromachined ultrasound transducer (CMUT) interface that requires only four wires for the high voltage and low voltage supplies and output signal. The system transmits a pulse with CMUT transducer and receives the echo signal which contains image data. The echo signal is down converted by a mixer following a low-noise amplifier. The system transfers down-converted image data using a pulse width modulator (PWM) and an impulse radio ultra-wideband (IR-UWB) wireless link, which are integrated on an IVUS guidewire, eliminating the need for a separate catheter.
