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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Jiusheng Chen Fuxing Zhang Mazzaro, L. Lanning, C. Glang, R. Hunter, K.S. Shandas, R. |
| Copyright Year | 2010 |
| Description | Author affiliation: Department of Mechanical Engineering, University of Colorado at Boulder, Boulder, CO 80309-0427, USA (Jiusheng Chen) || Department of Bioengineering, University of Colorado, Anschutz Medical Campus, Aurora, CO 80045, USA (Fuxing Zhang; Mazzaro, L.; Lanning, C.; Glang, R.; Hunter, K.S.; Shandas, R.) |
| Abstract | Echo Particle Image Velocimetry (Echo PIV) has great potential as a non-invasive, simple-to-use hemodynamic vascular profiling technique. Results generated through the analysis of radio frequency (RF) data have shown to be accurate under in vitro and in vivo testing settings. However, most ultrasound (US) imaging systems do not provide RF data but provide image output using the DICOM standard. An important issue when analyzing DICOM-coded images using the Echo PIV method is how to reduce the effects of noise introduced during postprocessing. In this work, a new Echo PIV analysis algorithm was developed to analyze DICOM images. In the algorithm, a quasi-linear transform first operates on the cross-correlation maps of each interrogation window, after which a modified ensemble average method is used to estimate time-averaged velocity field from multiple image pairs. This approach was validated against theory using measurements of fully developed laminar pipe flow, thus indicating that DICOM-image based Echo PIV is possible. We further demonstrate that the instantaneous velocity maps of certain pulsatile flow configurations were actually improved by the new method compared to the RF-based Echo PIV results. |
| Starting Page | 1084 |
| Ending Page | 1087 |
| File Size | 1110484 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781457703829 |
| ISSN | 19485727 |
| e-ISBN | 9781457703812 |
| DOI | 10.1109/ULTSYM.2010.5935855 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-10-11 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | DICOM Radio frequency Algorithm design and analysis Electron tubes Image coding Velocity measurement flow vecotr mapping Echo Particle Imaging Velocimetry DICOM images |
| Content Type | Text |
| Resource Type | Article |
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