Methods for Arbitrary Shape Selective Excitation Summed Spectroscopy and Applications of Same
AssigneeVanderbilt University
InventorsJohn C. GORE, Qin QIN, Robin A. DE GRAAF
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Abstract
In another aspect, the present invention relates to a method for NMR measurements of an arbitrarily shaped region of interest of a living subject. In one embodiment, the method comprises the steps of applying a broad bandwidth of RF pulses to the arbitrarily shaped region of interest to obtain a corresponding spectrum, wherein substantially entire range of chemical shifts in the spectrum is excited from the arbitrarily shaped region of interest, interleaving a plurality of radial k-lines in radial k-space per excitation with non-selective refocusing pulses and obtaining spatial localization for the spectrum of the arbitrarily shaped region of interest.
Claims20
A method for NMR measurements of an arbitrarily shaped region of interest of a living subject, comprising the steps of:
- (a) applying a broad bandwidth of RF pulses to the arbitrarily shaped region of interest to obtain a corresponding spectrum, wherein substantially entire range of chemical shifts in the spectrum is excited from the arbitrarily shaped region of interest;
- (b) interleaving a plurality of radial k-lines in radial k-space per excitation with non-selective refocusing pulses;
- and
- (c) obtaining spatial localization for the spectrum of the arbitrarily shaped region of interest.
A system for NMR measurements of an arbitrarily shaped region of interest of a living subject, comprising:
- (a) means for applying a broad bandwidth of RF pulses to the arbitrarily shaped region of interest to obtain a corresponding spectrum, wherein substantially entire range of chemical shifts in the spectrum is excited from the arbitrarily shaped region of interest;
- (b) means for interleaving a plurality of radial k-lines in radial k-space per excitation with non-selective refocusing pulses;
- and
- (c) means for obtaining spatial localization for the spectrum of the arbitrarily shaped region of interest.
A method for NMR measurements of an arbitrarily shaped region of interest of a living subject, comprising the steps of:
- (a) applying RF pulses with a bandwidth to the arbitrarily shaped region of interest to obtain a corresponding spectrum with one or more excitations;
- (b) interleaving a plurality of radial k-lines in radial k-space per excitation with one or more non-selective refocusing pulses;
- and
- (c) obtaining spatial localization for the spectrum of the arbitrarily shaped region of interest.
Dependencies are inferred from the claim text.