✦ LIBER ✦
Potential degradation in image quality due to selective averaging of phase-encoding lines in Fourier transform MRI
✍ Scribed by John P. Mugler III
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 314 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0740-3194
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✦ Synopsis
Abstract
The properties of the image noise for selective averaging of phase‐encoding lines have been investigated. For a given acquisition time, selective averaging results in a signal‐to‐noise ratio penalty compared to averaging all lines equally. In addition, selective averaging yields a non uniform distribution of noise characteristics in spatial frequency space, which can result in a change in the texture of the image noise. © 1991 Academic Press, Inc.