Jung, G, Tekes, C, Rashid, MW et al. (5 more authors) (2018) A Reduced-Wire ICE Catheter ASIC With Tx Beamforming and Rx Time-Division Multiplexing. IEEE Transactions on Biomedical Circuits and Systems, 12 (6). pp. 1246-1255. ISSN 1932-4545
Abstract
This paper presents a single chip reduced-wire active catheter application-specific integrated circuit (ASIC), equipped with programmable transmit (Tx) beamforming and receive (Rx) time-division multiplexing (TDM). The proposed front-end ASIC is designed for driving a 64-channel 1D transducer array in intracardiac echocardiography (ICE) ultrasound catheters. The ASIC is implemented in 60 V 0.18-μm HV-BCD technology, integrating Tx beamformers with high voltage (HV) pulsers and Rx front-end in the same chip, which occupies 2.6×11 mm 2 that can fit in the catheter size of 9 F (<3 mm). The proposed system reduces the number of wires from >64 to only 22 by integrating Tx beamformer which is programmable using a single low-voltage differential signaling (LVDS) data line. In Rx mode, the system uses 8:1 TDM with direct digital demultiplexing (DDD) providing raw channel data which enables dynamic Rx beamforming using individual array elements. This system has been successfully used for B-mode imaging on standard ultrasound phantom with 401 mW of average power consumption. The ASIC has a compact element pitch-matched layout, which is also compatible with capacitive micromachined ultrasound transducer (CMUT)-on-CMOS application. This system addresses cable number and dimensional restrictions in catheters to enable ICE imaging under magnetic resonance imaging (MRI) by reducing radio frequency (RF) induced heating.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | Medical ultrasound imaging; time division multiplexing; capacitive micromachined ultrasound transducers (CMUT); intracardiac echocardiography (ICE) |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Electronic & Electrical Engineering (Leeds) > Robotics, Autonomous Systems & Sensing (Leeds) |
Funding Information: | Funder Grant number National Institute of Health - NIH (PHS) Not Known |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Nov 2018 13:55 |
Last Modified: | 04 Feb 2019 12:56 |
Status: | Published |
Publisher: | IEEE |
Identification Number: | 10.1109/TBCAS.2018.2881909 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:139147 |