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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li, W. Carlier, S. Cespedes, I. Mastik, F. van der Steen, A.F.W. Verdouw, P.D. Bom, N. |
| Copyright Year | 1997 |
| Description | Author affiliation: Thoraxcentre, Erasmus Univ., Rotterdam, Netherlands (Li, W.) |
| Abstract | This paper presents a novel method for measuring local blood velocity and quantifying volume flow directly from cross-sectional intravascular ultrasound (IVUS) using a conventional IVUS catheter. This method is based on multiple decorrelation analysis of radio frequency echo signals. The velocity measurement is obtained by comparing the measured decorrelation value with a priori knowledge of the beam characteristics of the ultrasound transducer used. Volume flow is derived by integrating the velocity vector with its corresponding area element over the vessel cross-section. The proposed method was validated in vivo in pig experiments by comparing IVUS-flow data to the reference flow obtained with an electromagnetic (EM) flowmeter. An excellent correlation was observed between IVUS- and EM-flow data. No significant differences in the mean volume flow were found between the two methods. Results of this study demonstrate the potential of assessing vessel geometry simultaneously with functional parameters using the decorrelation analysis method. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 443452 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780344456 |
| ISSN | 02766547 |
| DOI | 10.1109/CIC.1997.647812 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-09-07 |
| Publisher Place | Sweden |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Blood Decorrelation Velocity measurement Ultrasonic variables measurement Ultrasonic imaging Fluid flow measurement Volume measurement Catheters Signal analysis Radio frequency |
| Content Type | Text |
| Resource Type | Article |
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