| Autor: |
Prinz Christian, Faludi Reka, Walker Andrew, Amzulescu Mihaela, Gao Hang, Uejima Tokuhisa, Fraser Alan G, Voigt Jens-Uwe |
| Jazyk: |
angličtina |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Cardiovascular Ultrasound, Vol 10, Iss 1, p 24 (2012) |
| Druh dokumentu: |
article |
| ISSN: |
1476-7120 |
| DOI: |
10.1186/1476-7120-10-24 |
| Popis: |
Abstract Aims To validate Echo Particle Image Velocimetry (PIV) Methods High fidelity string and rotating phantoms moving with different speed patterns were imaged with different high-end ultrasound systems at varying insonation angles and frame rates. Images were analyzed for velocity and direction and for complex motion patterns of blood flow with dedicated software. Post-processing was done with MATLAB-based tools (Dflow, JUV, University Leuven). Results Velocity estimation was accurate up to a velocity of 42 cm/s (r = 0.99, p Conclusion Echo-PIV appears feasible. Velocity estimates are accurate, but the maximal detectable velocity depends strongly on acquisition parameters. Direction estimation works sufficiently, even at higher velocities. Echo-PIV appears to be a promising technical approach to investigate flow patterns by echocardiography. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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