Susceptibility, field inhomogeneity, and chemical shift-corrected NMR microscopy: application to the human finger in vivo.
Spectroscopic proton image data recorded with the aid of a gradient-echo spectroscopic imaging pulse sequence are reported. A postdetection processing method is suggested which permits correction of artifacts due to inhomogeneity, susceptibility, and chemical-shift resonance offsets. That is, apart from the spectral information available in this way, better spatial resolutions can be achieved. The method is demonstrated by resonance-offset corrected images of the human finger in vivo. Moreover, resonance-line selective and spectroscopically resolved diffusion-weighted images and diffusivity maps rendered with the aid of the same postdetection procedure are shown.
Weis
J
J
Universität Ulm, Sektion Kernresonanzspektroskopie, Ulm, Germany.
Görke
U
U
Kimmich
R
R
D016477:Artifacts; D005385:Fingers / Q000033:anatomy & histology*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*