Nmr imaging technique

Details Nmr imaging technique Nmr imaging technique

G - Physics

01

N

324/1

G01N 24/08 (2006.01) G01R 33/483 (2006.01)

Patent

CA 1205134

ABSTRACT OF THE DISCLOSURE A method of obtaining an NMR spectrum for at least a portion of a specimen slice is provided. The method comprises acquiring a number of projections of the specimen slice and shifting the projections by .DELTA. f for any point of interest. The shifted projections are then summed or com- pared to produce a resultant point spectrum. Preferably, shifted projections in each of a plurality of selected sets thereof are compared so as to produce a plurality of re- sultant spectra for the point which are used to produce a first iterated point spectrum. Additional stages of ite- ration are provided to minimize the effect of artifacts which comprises comparing aligned corresponding positions on an i iterated spectrum with a previously uncompared re- sultant point spectrum, so as to produce an i + 1 iterated spectrum for the point, and repeating the foregoing a plu- rality of times, in each case using the iterated spectrum from the previous iteration as the i iterated spectrum.

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