Ultrasound Capsule Endoscopy Components for in vivo and ex vivo Microultrasound Near-Field Imaging

Lemke, C. , Thomson, H., Lay, H. S. , Cox, B. F., Qiu, Y. , Clutton, R. E. and Cochran, S. (2019) Ultrasound Capsule Endoscopy Components for in vivo and ex vivo Microultrasound Near-Field Imaging. In: 2019 IEEE International Ultrasonics Symposium (IUS), Glasgow, UK, 06-09 Oct 2019, ISBN 9781728145969 (doi:10.1109/ULTSYM.2019.8925827)

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Abstract

Ultrasound capsule endoscopy (USCE) has attracted increased interest recently. In order to image the walls of the gastrointestinal (GI) tract with USCE efficiently, both high-frequency ultrasound (i.e. microultrasound) imaging and good acoustic coupling are needed. Tissue to be scanned is expected close to the transducer surface, but the near-field tissue echoes may be easily lost in the acoustic ring-down. Here, we present experimental ex vivo and in vivo porcine small bowel imaging results from an USCE prototype. The preliminary results show that the near-field image can be recovered after post-processing. Although some limitations in imaging the GI tract are inherent in the use of focused single element transducers, solving the problem of near-field imaging is relevant to all USCE implementations.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Lemke, Dr Christina and Thomson, Miss Hannah and Qiu, Dr Yongqiang and Cox, Dr Benjamin F and Cochran, Professor Sandy and Lay, Dr Holly
Authors: Lemke, C., Thomson, H., Lay, H. S., Cox, B. F., Qiu, Y., Clutton, R. E., and Cochran, S.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
ISSN:1948-5727
ISBN:9781728145969
Published Online:09 December 2019

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
173138Sonopill: minimally invasive gastrointestinal diagnosis and therapyAlexander CochranEngineering and Physical Sciences Research Council (EPSRC)EP/K034537/2ENG - Systems Power & Energy