Grzegorz Bauman1,2, Michael Deimling3, Michael Puderbach4, Lothar Rudi Schad2
1Medical Physics in Radiology, German Cancer Research Center, Heidelberg, Germany; 2Computer Assisted Clinical Medicine, University of Heidelberg, Mannheim, Germany; 3Siemens Healthcare, Erlangen, Germany; 4Department of Radiology, German Cancer Research Center, Heidelberg, Germany
In lung MRI, due to the fast signal dephasing, respiratory motion and cardiac pulsation, very fast imaging sequences using short repetition times or the application of triggering techniques are required. The aim of this work was to numerically simulate and optimize the Steady-State Free Precession (SSFP) imaging scheme for dynamic studies on a 1.5 T whole-body MR-scanner. Fast imaging with the SSFP sequence using a combination of the central k-space sampling, parallel imaging, high bandwidth and minimal inter-echo sampling allowed to improve the visualization of the pulmonary tissue sufficiently for functional lung MRI.