To explain previously unrecognised consequences of two sources of phase curvature over the vessel cross-section in spiral imaging i.e. off-resonance and the velocityencoded phase-shift.
Flow distortion and signal loss in spiral imaging
β Scribed by P.D. Gatehouse; D.N. Firmin
- Book ID
- 101315683
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 419 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0740-3194
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract ## Purpose To derive and implement a method for correcting geometric distortions and recovering magnetic resonance imaging (MRI) signal losses caused by susceptibilityβinduced magnetic field gradients (SFGs) in regions with large static field inhomogeneities in echoβplanar imaging (EPI
## Abstract Mechanisms of signal loss in magnetic resonance angiography were studied with a stenotic flow phantom. The results indicate that while signal loss induced by mean fluid motions is localized about the stenosis, the fluctuating component of fluid motion induces signal loss over a much lar