Single and double acquisition strategies for compensation of artifacts from eddy current and transient oscillation in balanced steady‐state free precession

摘要: Purpose To develop single and double acquisition methods to compensate for artifacts from eddy currents transient oscillations in balanced steady-state free precession (bSSFP) with centric phase-encoding (PE) order magnetization-prepared bSSFP imaging. Theory Methods A four different were developed evaluated Bloch equation simulations, phantom/in vivo experiments, quantitative analyses. For the method, multiple PE groups, each of which was composed N linearly changing lines, ordered a pseudocentric manner optimal contrast minimal signal fluctuations. Double used complex averaging two images that had opposite artifact patterns orders or numbers dummy scans. Results Simulation results showed high sensitivity eddy-current transient-oscillation off-resonance frequency schemes. The reduced PE-grouping values 3 8, similar better than conventional pairing scheme N = 2. proposed removed remaining significantly. conserved detailed structures magnetization transfer imaging well, compared methods. Conclusion The can be useful artifact-free desired minimized scans. Magn Reson Med 78:254–263, 2017. © 2016 International Society Magnetic Resonance Medicine