Cardiac phase-specific shimming (CPSS) applied in volunteers yielded significant improvement in the main magnetic field homogeneity over the entire cardiac cycle.
Does cardiac phase-specific shimming (CPSS) improve magnetic field homogeneity during SSFP MR cine imaging at 3 T in volunteers?
Cardiac phase-specific shimming improves magnetic field homogeneity during 3T cardiac MRI, potentially enhancing diagnostic image quality by reducing signal voids and distortions.
The application of steady-state-free-precession (SSFP) techniques at 3 T systems is still limited by their sensitivity to magnetic field inhomogeneities. Especially during imaging of the heart, the arising signal voids and distortions in the myocardium currently often limit the diagnostic value of the resulting images. Dedicated shim systems providing higher order shimming capabilities have been applied to improve the field homogeneity across the heart. In this study, the potential benefit of applying a cardiac phase-specific shim (CPSS) was investigated. The cardiac phase dependence of the magnetic field distortions over the heart was assessed and the potential gain in field homogeneity by CPSS was evaluated. CPSS was successfully applied in volunteers and yielded significant improvement in the main magnetic field homogeneity over the entire cardiac cycle.
Kubach et al. (Thu,) reported a other. Cardiac phase-specific shimming (CPSS) was evaluated on Main magnetic field homogeneity over the entire cardiac cycle. Cardiac phase-specific shimming (CPSS) applied in volunteers yielded significant improvement in the main magnetic field homogeneity over the entire cardiac cycle.
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