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Considerations of magnetic resonance angiography by selective inversion recovery

✍ Scribed by Dwight G Nishimura; Albert Macovski; John M. Pauly

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
753 KB
Volume
7
Category
Article
ISSN
0740-3194

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✦ Synopsis

In the selective inversion recovery method for projection angiography, upstream blood is tagged by an inversion excitation and then allowed to flow into the imaged region. The subtraction of this first image from a second image acquired without the tagging leaves a signal from only the selectively tagged blood. Pulse sequence design involves consideration of the duration of the blood transit interval, excitation timing and cardiac gating, static material suppression, inversion excitation pulses, and flow compensation. Each of these considerations must be viewed with respect to the particular application. The method has demonstrated potential application to areas such as the carotid arteries, aortic arch, and peripheral Vessels. Q 1988 Academic Press, Inc.

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