## Abstract Blood velocity is a functional parameter that is not easily assessed noninvasively, especially in small animals. A new noninvasive method that uses magnetic resonance angiography (MRA) to measure blood flows is proposed. This method is based on the time‐of‐flight (TOF) phenomenon. By in
Time-resolved magnetic resonance angiography
✍ Scribed by C. L. Dumoulin; S. P. Souza; M. F. Walker; E. Yoshitome
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 667 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
A time-resolved phase contrast magnetic resonance angiography technique is described. This technique provides a series of angiograms obtained at different phases of the cardiac cycle. Such a series of angiograms can be used to evaluate blood flow dynamics. For example, turbulent flow in the regions of vessel bifurcations is easily demonstrated and followed during systole and diastole. Retrograde flow can also be observed. Dynamic angiography can be particularly useful in distinguishing transient image features, such as signal voids due to turbulent flow, from static features arising from vessel morphology.
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