Abstract
This paper presents a front-end ASIC for forward-looking intravascular ultrasound (IVUS) imaging. The ASIC is intended to be mounted at the tip of a catheter and can interface a total of 80 piezo-electric transducer elements with an imaging systems using only 4 cables, thus significantly reducing the system complexity compared to the prior art. It is capable of switching high-voltage transmit pulses to 16 transmit elements, and capturing the resulting echo signals using 64 multiplexed receive elements. The ASIC digitizes the received signals locally, providing more robust communication than prior analog approaches. Measurements show that the ASIC effectively switches transmit pulses up to 30 V, and digitizes echo signals with a bandwidth of 16 MHz, while consuming only 10 mW. Acoustic measurements in combination with a prototype transducer array demonstrate pulse transmission and reception. Finally, a B-mode image of a needle phantom demonstrates the imaging capability.
Original language | English |
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Title of host publication | CICC 2017 - 38th Annual Custom Integrated Circuits Conference |
Publisher | IEEE |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-5090-5191-5 |
DOIs | |
Publication status | Published - 2017 |
Event | CICC 2017: The 38th Annual Custom Integrated Circuits Conference - A Showcase for Integrated Circuit Design in “Silicon Hills” - Austin, TX, United States Duration: 30 Apr 2017 → 3 May 2017 Conference number: 38 http://ieee-cicc.org/2017/ |
Conference
Conference | CICC 2017 |
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Country/Territory | United States |
City | Austin, TX |
Period | 30/04/17 → 3/05/17 |
Internet address |
Keywords
- cable-count reduction
- high-voltage switching
- instravascular ultrasound imaging
- piezo-electric transducer
- receive digitization