Methods for arbitrary shape selective excitation summed spectroscopy and applications of same
First Claim
1. 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,wherein the plurality of radial k-lines in radial k-space has a total number Nk-line.
1 Assignment
0 Petitions
Accused Products
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.
29 Citations
17 Claims
-
1. 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, wherein the plurality of radial k-lines in radial k-space has a total number Nk-line. - View Dependent Claims (2, 3, 4, 5)
-
-
6. 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, wherein the plurality of radial k-lines in radial k-space has a total number Nk-line. - View Dependent Claims (7, 8, 9)
-
-
10. 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, wherein the bandwidth of the RF pulses is sufficiently broad to allow a substantially entire range of chemical shifts in the spectrum to be excited from the arbitrarily shaped region of interest. - View Dependent Claims (11, 12)
-
-
13. 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, wherein the plurality of radial k-lines in radial k-space has a total number Nk-line. - View Dependent Claims (14, 15, 16, 17)
-
Specification