Andreas Hock1, Anke Henning2, Michael Schr3,4, Alexander Fuchs1, Spyros Kollias5, Peter Boesiger1
1University and ETH Zurich, Institute for Biomedical Engineering, Zurich, Switzerland; 2University Hospital of Zurich, Institute for Biomedical Engineering, Zurich, Switzerland; 3The Johns Hopkins University School of Medicine, 1Russel H. Morgan Department of Radiology and Radiological Science, Baltimore, MD, United States; 4Philips Healthcare, Cleveland, OH, United States; 5University Hospital of Zurich, Institute of Neuroradiology, Zurich, Switzerland
ECG-triggered FASTERMAP shimming is introduced and compared to conventional FASTERMAP shimming and shimming based on ECG-triggered B0 field mapping for single voxel proton spectroscopy at 3T. This investigation shows that the use of ECG-triggered FASTERMAP seems to be a robust and applicable method for clinical spinal cord spectroscopy. It is significantly faster than ECG-triggered B0 mapping and in contrast to the conventional FASTERMAP shimming artifacts due to pulsatile CSF flow introduced by cardiac motion may have less influence.