(A) study on fast NMR imaging by phase error corrected Interlaced Echo Planar Imaging

Abstract

The effects of field inhomogeneity and chemical shift in an Interlaced Echo Planar Imaging(IEPI) are considered. To eliminate the geometric distortion and blur caused by field inhomogeneity and chemical shift, a new imaging method incorporating $90\,^\circ\!C$ r.f. time encoding is proposed and studied. By combining this method together with chemical shift selective(CHESS) excitation technique and echo time encoding method, good inhomogeneity effect corrected images and water-fat separated images of human volunteer were obtained.