Djaudat Idiyatullin1, Curt Corum1, Steen Moeller1, Jutta Ellermann2, Michael Garwood1
1CMRR, University of Minnesota, Minneapolis, MN, USA; 2Radiology, University of Minnesota, Minneapolis, MN, USA
The ability to obtain chemical shift information is often needed and advantageous in MRI. This work describes a new 3D and 4D spectroscopic SWIFT technique involving an intrinsic frequency dimension. In addition to providing chemical shift information, spectroscopic SWIFT can be used to reduce blurring which normally occurs in radial imaging due to frequency shifts. The presented method can be used for spectroscopy of human tissue having transverse relaxation times, T2, in microsecond time scale. As examples of applications, fat-water separation, imaging near metallic implants, and short T2 mapping are illustrated and discussed.