Media type: E-Article Title: 3D magnetization‐prepared true‐FISP: A new technique for imaging coronary arteries Contributor: Deshpande, Vibhas S.; Shea, Steven M.; Laub, Gerhard; Simonetti, Orlando P.; Finn, J. Paul; Li, Debiao Published: Wiley, 2001 Published in: Magnetic Resonance in Medicine, 46 (2001) 3, Seite 494-502 Language: English DOI: 10.1002/mrm.1219 ISSN: 0740-3194; 1522-2594 Origination: Footnote: Description: AbstractThe purpose of this work was to develop an ECG‐triggered, segmented 3D true‐FISP (fast imaging with steady‐state precession) technique to improve the signal‐to‐noise ratio (SNR) and contrast‐to‐noise ratio (CNR) of breath‐hold coronary artery imaging. The major task was to optimize an appropriate magnetization preparation scheme to permit saturation of the epicardial fat signal. An α/2 preparation pulse was used to speed up the approach to steady‐state following a frequency‐selective fat‐saturation pulse in each heartbeat. The application of dummy cycles was found to reduce the oscillation of the magnetization during data acquisition. The fat saturation and magnetization preparation scheme was validated with simulations and phantom studies. Volunteer studies demonstrated substantially increased SNR (55%) and CNR (178%) for coronary arteries compared to FLASH (fast low‐angle shot) with the same imaging time. In conclusion, true‐FISP is a promising technique for coronary artery imaging. Magn Reson Med 46:494–502, 2001. © 2001 Wiley‐Liss, Inc.