Patent ID: 8604787
Filing Date: 2013-12-10
Classification: A61B,G01R

Abstract:
1. An MRI method that permits collecting a localized spectrum and a spectroscopic image with one spectral dimension and up to three spatial dimensions using an NMR apparatus comprising: application of RF pulses and gradients to excite nuclear spins in a circumscribed region; application of gradient pulses to localize signals and encode k-space wherein; a magnetic resonance spectroscopy pulse sequence and a magnetic resonance spectroscopic imaging pulse sequence comprises the sequential steps of applying one or more water suppression modules, spatial prelocalization and signal readout in the presence of spatial-spectral encoding gradients that encode up to 3 spatial dimensions and 1 spectral dimension; a spatial-spectral measurement within said water suppression modules comprising the three sequential steps of (a) applying a radio frequency pulse that excites a water signal, (b) measurement of said water signal in the presence of spatial or spatial-spectral encoding gradients, and (c) applying gradients to dephase said water signal; reception of an NMR signal; and wherein the water suppression step additionally contains a measurement of the excited water signal in the presence of spatial-spectral encoding gradients that encode up to 3 spatial dimensions and 1 spectral dimension, and reconstruction of spectroscopic data and spectroscopic images.