Method for reconstruction for mri signals

Details Method for reconstruction for mri signals Method for reconstruction for mri signals

G - Physics

01

R

G01R 33/48 (2006.01) G01R 33/483 (2006.01) G01R 33/54 (2006.01) G01R 33/56 (2006.01)

Patent

CA 2147556

A method and an apparatus are used in magnetic resonance imaging. In generating the resonance signals, the magnetic gradient fields are varied to represent a scan on a non-linear, continuously varying curve. One specific example given is a multi-leafed rose. New mathematical treatments of the resultant signal are presented, which are used to define a novel method for the reconstruction of an image from these signals based on k-plane coordinates naturally associated with the signal acquisition. The superior image quality that the new reconstruction method gives means that non-linear, continuously varying acquisition in k-space may be used so that magnetic field switching and high cost hardware is not required, while signal acquisition times are significantly reduced.

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