Spectroscopic MR Imaging Using the Spread Spectrum Produced by Oscillating Gradient Fields

摘要

A chemical shift MR method which utilizes a oscillating gradientfield is presented in this paper. Frequency modulation resulting fromoscillating a gradient field spreads the spectrum that contains bothchemical shift and spatial informa- tion, over a wide frequency rangeby using a large modulation factor in FM. The chemical shift spectrumresides within every frequency band segmented by the midulationfrequency ωm.