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Updated: Jun 13, 2026

Cardiac Magnetic Resonance Imaging at 7 Tesla
Published on: January 6, 2019
Improved coronary MR angiography using wideband steady state free precession at 3 tesla with sub-millimeter
Hsu-Lei Lee1, Ajit Shankaranarayanan, Gerald M Pohost
1Ming Hsieh Department of Electrical Engineering, University of Southern California, Los Angeles, California, USA. hsu-lei.lee@uniklinik-freiburg.de
Purpose:
To suppress off-resonance artifacts in coronary artery imaging at 3 Tesla (T), and therefore improve spatial resolution.
Materials And Methods:
Wideband steady state free precession (SSFP) sequences use an oscillating steady state to reduce banding artifacts. Coronary artery images were obtained at 3T using three-dimensional navigated gradient echo, balanced SSFP, and wideband SSFP sequences.
Results:
The highest in-plane resolution of left coronary artery images was 0.68 mm in the frequency-encoding direction. Wideband SSFP produced an average SNR efficiency of 70% relative to conventional balanced SSFP and suppressed off-resonance artifacts.
Conclusion:
Wideband SSFP was found to be a promising approach for obtaining noncontrast, high-resolution coronary artery images at 3 Tesla with reliable image quality.
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