Nmr imaging method and apparatus

Details Nmr imaging method and apparatus Nmr imaging method and apparatus

G - Physics

01

N

324/1

G01N 24/08 (2006.01) G01R 33/565 (2006.01)

Patent

CA 1238949

- 1 - Abstract An NMR imaging method and apparatus are of the type in which a 180-degree RF pulse is applied to generate a spin echo after the selective excitation of a spin by a 90-degree RF pulse. A dummy gradient field that has the same direction and intensity as those of a gradient field to be applied when the spin echo is observed is applied between the 90-degree RF pulse and the 180-degree RF pulse so that the instant of starting application of the gradient field for signal observation is advanced to the extent corresponding to the dummy gradient field. The resulting method provides compensation for image distortion due to transient response of the gradient field.

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