| EPSRC Reference: |
GR/M23892/01 |
| Title: |
OPTIMISATION OF MULTI-BEAM ULTRASONIC METHODS OF VELOCITY ESTIMATION FOR ASSESSMENT OF ARTERIAL DISEASE |
| Principal Investigator: |
Xu, Professor XY |
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| Department: |
Chemical Engineering |
| Organisation: |
Imperial College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
05 October 1998 |
Ends: |
04 April 2000 |
Value (£): |
65,837
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| EPSRC Research Topic Classifications: |
| Instrumentation Eng. & Dev. |
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| No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Measurement of blood velocity from doppler ultrasound systems is used to estimate the degree of arterial narrowing in deseased arteries, which is used in the decision to forward patients for surgery. All current doppler systems estimate only one componant of velocity, leading to large errors especially in complex flow patterns.The proposed work will investigate a technique called vector doppler in which 2 velocity componants are estimated simultaneously. Investigation of machine settings and flow conditions on the errors in estimated velocity will be performed using a computer model of ultrasound transmission and reception combined with a model of the flow field in a narrowed arterial segment. Experimental validation will be performed using a modified commercial scanner in which velocity information from 2 directions is obtained in real time. For this purpose an acoustically and geometrically stable tissue equivalent model of arterial narrowing will be developed and used. A successful project outcome will provide the strategic evidence to justify commercial implementation of this technique throughout the ultrasound industry, along with information on appropriate implementation. On commercial introduction of vector doppler, velocities measured clinically will be more accurate leading to improved categorisation of patients for surgery, and hence improved quality of life.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.imperial.ac.uk |