Free-breathing renal magnetic resonance angiography with steady-state free-precession and slab-selective spin inversion combined with radial k-space sampling and water-selective excitation.

Details

Serval ID
serval:BIB_48F6E81893B8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Free-breathing renal magnetic resonance angiography with steady-state free-precession and slab-selective spin inversion combined with radial k-space sampling and water-selective excitation.
Journal
Magnetic Resonance In Medicine
Author(s)
Katoh M., Spuentrup E., Stuber M., Hoogeveen R., Günther R.W., Buecker A.
ISSN
0740-3194[print], 0740-3194[linking]
Publication state
Published
Issued date
2005
Volume
53
Number
5
Pages
1228-1233
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
The impact of radial k-space sampling and water-selective excitation on a novel navigator-gated cardiac-triggered slab-selective inversion prepared 3D steady-state free-precession (SSFP) renal MR angiography (MRA) sequence was investigated. Renal MRA was performed on a 1.5-T MR system using three inversion prepared SSFP approaches: Cartesian (TR/TE: 5.7/2.8 ms, FA: 85 degrees), radial (TR/TE: 5.5/2.7 ms, FA: 85 degrees) SSFP, and radial SSFP combined with water-selective excitation (TR/TE: 9.9/4.9 ms, FA: 85 degrees). Radial data acquisition lead to significantly reduced motion artifacts (P < 0.05). SNR and CNR were best using Cartesian SSFP (P < 0.05). Vessel sharpness and vessel length were comparable in all sequences. The addition of a water-selective excitation could not improve image quality. In conclusion, radial k-space sampling reduces motion artifacts significantly in slab-selective inversion prepared renal MRA, while SNR and CNR are decreased. The addition of water-selective excitation could not improve the lower CNR in radial scanning.
Keywords
Adult, Artifacts, Chi-Square Distribution, Female, Humans, Hypertension, Renovascular/diagnosis, Imaging, Three-Dimensional, Magnetic Resonance Angiography/methods, Male, Renal Artery, Respiration, Statistics, Nonparametric
Pubmed
Web of science
Open Access
Yes
Create date
02/03/2010 16:04
Last modification date
20/08/2019 13:56
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