NDLI: Investigation of dual mode side and forward looking IVUS using a dual ring CMUT-on-CMOS array

Content Provider	IEEE Xplore Digital Library
Author	Tekes, C. Xu, T. Degertekin, F.L.
Copyright Year	2012
Description	Author affiliation: George W. Woodruff Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA, USA (Tekes, C.; Xu, T.; Degertekin, F.L.)
Abstract	Forward looking (FL) capability is desired in IVUS catheters to enable real time volumetric visualization of especially nearly or fully blocked arteries to guide interventions. The addition of side looking (SL) capability in the same catheter would be valuable to locate the device with respect to vessel walls and provide a conventional image to the clinicians. A single chip CMUT-on-CMOS array may provide both capabilities while enabling an extremely flexible catheter tip implementation. In this study, the combined side and forward viewing ability of the CMUT-on-CMOS IVUS array is investigated and initial experimental results are presented. To demonstrate SL imaging, we used a 20-MHz single chip dual-ring CMUT-on-CMOS array with 56 transmit and 48 receive elements fabricated on a 1.5-mm diameter 0.3-mm thick silicon donut. We placed four vertical wire targets close to the array plane and a front wire located above the same array. The frequency spectrums of the side and front targets have a center frequency of 12 MHz and 20 MHz, respectively. We also performed finite element method (FEM) simulations to obtain the frequency spectrums of the transient pressure signals at 0° and 90° which showed the same center frequencies. These results show promise for the viability of FLIVUS CMUT-on-CMOS device with dual mode side-forward looking imaging.
Starting Page	1572
Ending Page	1575
File Size	2462081
Page Count	4
File Format	PDF
ISBN	9781467345613
ISSN	19485719
e-ISBN	9781467345620
DOI	10.1109/ULTSYM.2012.0393
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-10-07
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Arrays Imaging Wires Finite element analysis Acoustics Catheters Ultrasonic imaging FEM Intravascular ultrasound CMUT Side Looking Forward-Looking
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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Bias optimization of dual ring CMUT arrays for forward looking IVUS applications

Experimental study of dual-ring CMUT array optimization for forward-looking IVUS

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Investigation of dual mode side and forward looking IVUS using a dual ring CMUT-on-CMOS array

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