Sideband processing for magnetic resonance

Patent metadata

Field	Value
Publication number	US-9880243-B2
Application number	US-201213527283-A
Country	US
Kind code	B2
Filing date	Jun 19, 2012
Priority date	Jun 20, 2011
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A method includes applying a pulse train to a spin system in a scanner. The pulse train has a plurality of discontinuities in a time domain. The method includes receiving a response from the spin system. The response corresponds to a gated signal. The method includes accessing a correction factor corresponding to the scanner. The method includes calculating a correction to the response based on the correction factor. The method includes generating an output based on the correction.

First claim

The claimed invention is:

1. A method comprising:
applying a pulse train to a spin system in a scanner, the pulse train having a plurality of discontinuities in a time domain;
receiving a plurality of responses from the spin system, each response of the plurality of responses including baseband content and sideband content;
generating a correction factor based on the baseband content and the sideband content, wherein generating the correction factor includes processing a first response of the plurality of responses and processing a second response of the plurality of responses wherein a gate position of a transmitter and a receiver for the first response is time shifted relative to the gate position of the transmitter and receiver for the second response;
calculating a correction based on the correction factor; and
generating an image based on the correction.

2. The method of claim 1 wherein generating the correction factor includes processing oversampled data corresponding to the plurality of responses.

3. The method of claim 1 wherein generating the correction factor includes calculating an interpolation operator corresponding to the plurality of responses.

4. The method of claim 1 wherein generating the correction factor includes generating an interpolation operator.

5. The method of claim 4 wherein generating the interpolation operator includes generating a GRAPPA kernel.

Assignees

• Corum Curtis A
• Moeller Steen
• Idiyatullin Djaudat S
• Chamberlain Ryan
• Garwood Michael G
• Univ Minnesota

Inventors

• Corum Curtis A
• Moeller Steen
• Idiyatullin Djaudat S
• Chamberlain Ryan
• Garwood Michael G

Classifications

• G01R33/4616 Primary

  using specific RF pulses or specific modulation schemes, e.g. stochastic excitation, adiabatic RF pulses, composite pulses, binomial pulses, Shinnar-le-Roux pulses, spectrally selective pulses not being used for spatial selection · CPC title