Indrajit Saha1,2, Jay Moore1,3,
Saikat Sengupta1,4, Subechhya Pradhan1,3, James M.
Joers5,6, John C. Gore1,2
1Vanderbilt University
Institute of Imaging Science, Vanderbilt University, Nashville, TN, United
States; 2Department of Radiology & Radiological Sciences,
Vanderbilt University, Nashville, TN, United States; 3Department
of Physics & Astronomy, Vanderbilt University, Nashville, TN, United
States; 4Department of Biomedical Engineering, Vanderbilt
University, Nashville, TN, United States; 5Department of
Radiology, Childrens Hospital of Wisconsin, Milwaukee, WI, United States; 6The
Medical College of Wisconsin,
Milwaukee, WI, United States
The acquisition of high quality MR spectroscopic imaging data at 7 T requires overcoming several problems associated with the physics of high field MRSI. We present our ongoing work on developing 2-D/single-slice MRSI methodology at 7 T human MR system by using image-based shimming, and B1-insensitive composite-pulses for improved skull-lipid suppression in a short echo-time STEAM sequence. This preliminary work shows the promises of improvements achievable at 7 T for exploitation of SENSE acceleration in MRSI acquisitions.
Keywords