Table of Contents Author Guidelines Submit a Manuscript
Journal of Sensors
Volume 2015 (2015), Article ID 420860, 12 pages
http://dx.doi.org/10.1155/2015/420860
Research Article

Local Interaction Simulation Approach for Fault Detection in Medical Ultrasonic Transducers

1Department of Robotics and Mechatronics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
2Department of Medical Physics, Sheffield Teaching Hospital NHS Foundation Trust, Northern General Hospital, Glossop Road, Sheffield S10 2JP, UK

Received 24 March 2015; Revised 29 May 2015; Accepted 30 May 2015

Academic Editor: Hai-Feng Ji

Copyright © 2015 Z. Hashemiyan et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new approach is proposed for modelling medical ultrasonic transducers operating in air. The method is based on finite elements and the local interaction simulation approach. The latter leads to significant reductions of computational costs. Transmission and reception properties of the transducer are analysed using in-air reverberation patterns. The proposed approach can help to provide earlier detection of transducer faults and their identification, reducing the risk of misdiagnosis due to poor image quality.