Functional lung imaging is of great importance for diagnosis of pulmonary diseases. Previously, a non-contrast-enhanced method called Fourier Decomposition was proposed for assessing pulmonary functions based on balanced steady-stated free precession pulse sequence. However, this pulse sequence is known to be sensitive to magnetic field inhomogeneities. Here, we propose a phase-cycled acquisition for improved robustness against field inhomogeneities. In vivo results from 1.5 T and 3 T scanners are provided to demonstrate the performance of phase-cycled acquisitions for functional lung imaging. Preliminary results indicate that phase cycling can be a viable option for reducing limitations arising from magnetic field inhomogeneities.
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