Color flow image-directed Doppler ultrasound was used to image 9 iatrogenic arteriovenous (AV) fistulas in the groin following femoral artery catheterization. Characteristic findings in the color images and spectral waveforms seen in most patients included visible connection between the artery and
Computer implementation in the reconstruction of 2-D flow velocity fields in ultrasound Doppler color imaging
โ Scribed by Ding-Yu Fei; Cai-Ting Fu; Danhui D. Liu
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 702 KB
- Volume
- 25
- Category
- Article
- ISSN
- 0010-4825
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โฆ Synopsis
Doppler color imaging can easily render flow information within the vessels and simultaneously provide anatomic information for diagnostic purposes. However, the angle dependence problem of the Doppler velocity measurement is a significant barrier for continuing progress toward quantitative clinical applications of this technology. This paper presents a method and the computer implementation for reconstruction of the 2-D flow velocity field (angle independent) in ultrasound Doppler color imaging. Formulae for deriving angle independent velocity amplitude and angle direction from the color images acquired with a linear array transducer are given. The hardware configuration of the data acquiring and processing system is described. Major considerations in the development of algorithms, especially the strategies for reducing the computation time are presented.
Ultrasound Angle independence Doppler color imaging Reconstruction of flow velocity field
Computer implementation
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