Local re-inversion coronary MR angiography: arterial spin-labeling without the need for subtraction.

Details

Serval ID
serval:BIB_E68CC016B61B
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Local re-inversion coronary MR angiography: arterial spin-labeling without the need for subtraction.
Journal
Journal of Magnetic Resonance Imaging
Author(s)
Katoh M., Spuentrup E., Barmet C., Stuber M.
ISSN
1053-1807[print], 1053-1807[linking]
Publication state
Published
Issued date
2008
Volume
27
Number
4
Pages
913-917
Language
english
Notes
Publication types: Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
Publication Status: ppublish
Abstract
PURPOSE: To implement a double-inversion bright-blood coronary MR angiography sequence using a cylindrical re-inversion prepulse for selective visualization of the coronary arteries. MATERIALS AND METHODS: Local re-inversion bright-blood magnetization preparation was implemented using a nonselective inversion followed by a cylindrical aortic re-inversion prepulse. After an inversion delay that allows for in-flow of the labeled blood-pool into the coronary arteries, three-dimensional radial steady-state free-precession (SSFP) imaging (repetition/echo time, 7.2/3.6 ms; flip angle, 120 degrees, 16 profiles per RR interval; field of view, 360 mm; matrix, 512, twelve 3-mm slices) is performed. Coronary MR angiography was performed in three healthy volunteers and in one patient on a commercial 1.5 Tesla whole-body MR System. RESULTS: In all subjects, coronary arteries were selectively visualized with positive contrast. In addition, a middle-grade stenosis of the proximal right coronary artery was seen in one patient. CONCLUSION: A novel T1 contrast-enhancement strategy is presented for selective visualization of the coronary arteries without extrinsic contrast medium application. In comparison to former arterial spin-labeling schemes, the proposed magnetization preparation obviates the need for a second data set and subtraction.
Keywords
Adult, Coronary Circulation, Coronary Stenosis/diagnosis, Coronary Vessels/anatomy & histology, Humans, Magnetic Resonance Angiography, Middle Aged, Spin Labels, Subtraction Technique
Pubmed
Web of science
Open Access
Yes
Create date
02/03/2010 17:04
Last modification date
20/08/2019 17:09
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