Sammanfattning
An experimental system has been developed to verify the possibility of detecting flow activity using a technique called ultrasound Doppler vector tomography. A tomography algorithm is used to reconstruct blood flow vector fields using data from computer-controlled ultrasound continuous-wave Doppler scanning equipment. The result is a picture in which the brightness variations represent the reconstructed values of the curl of the velocity field (del x v). Continuous ultrasound is transmitted into a region with flow activity and the Doppler-shifted signals are received. To obtain measurement data suited for fan beam tomography, the scanning is performed in a plane from points encircling the region. Reconstructions have been achieved using measurement data from two different flow phantoms. A comparison between the experimental results and simulations shows good conformity. Copyright (C) 1997 World Federation for Ultrasound in Medicine & Biology.
Originalspråk | engelska |
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Sidor (från-till) | 47-57 |
Tidskrift | Ultrasound in Medicine and Biology |
Volym | 23 |
Nummer | 1 |
DOI | |
Status | Published - 1997 |
Ämnesklassifikation (UKÄ)
- Radiologi och bildbehandling