alexa Validity and Sensitivity of 2 MHz and 4 MHz Pulsed Wave for Detecting Emboli in Carotid Phantom
ISSN: 2155-9538

Journal of Bioengineering & Biomedical Science
Open Access

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Research Article

Validity and Sensitivity of 2 MHz and 4 MHz Pulsed Wave for Detecting Emboli in Carotid Phantom

Ali Aldhebaib* and Mohammed Aslam

Imperial College London, UK

*Corresponding Author:
Aldhebaib A
Imperial College London, UK
Tel: 4420 8383 1541
E-mail: [email protected]

Received Date: May 22, 2014; Accepted Date: May 23, 2014; Published Date: May 31, 2014

Citation: Aldhebaib A, Aslam M (2014) Validity and Sensitivity of 2 MHz and 4 MHz Pulsed Wave for Detecting Emboli in Carotid Phantom. J Bioeng Biomed Sci 4: 130 doi: 10.4172/2155-9538.1000130

Copyright: © 2014 Aldhebaib A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Stroke remains a serious medical condition resulting in significant mortality and disability. Early detection using ultrasound technology is a way forward to prevent potential strokes. It has been known that ultrasound transducer of a single crystal with a frequency of around 2 MHz used for embolus detection in the Meddle Cerebral Artery (MCA), but no specific transducer have been validated for embolus detection in Common Carotid Artery (CCA) yet. Our study aims to use carotid phantom to report the sensitivity and specificity of embolus detection of 2 MHz, and 4 MHz PW probes in continuous monitoring of the common carotid artery. Our results show validity and high sensitivity of 2 MHz and 4 MHz pulsed Doppler transducers to detect solid embolic particles up to the size of 200 μm in a phantom of the common carotid artery. 2 MHz probe was more sensitive in detection of 200 μm particles and a symmetric to MCA probe monitoring. Simultaneous monitoring of MCA and CCA with the use of Doppler ultrasound with 2 MHz probe has a potential value to identify the active embolic signal source in patients with acute stroke. The monitoring may help to prevent or predict future acute stroke events thereby preventing potentially life threatening medical condition.

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