Patent · US Active

T2 inversions with reduced motion artifacts

US10429536B2 · kind B2 · utility

1Cited by

8References

22Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Tobias Kischkat · Celle, DE
Radu Coman · Hannover, DE
Holger Thern · Hannover, DE

Key dates

Filing date	Apr 4, 2016
Grant date	Oct 1, 2019
Priority date	—
Expiry date	Jul 3, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/56509
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for processing nuclear magnetic resonance (NMR) measurement data includes receiving, with a processor, NMR measurement data obtained from an NMR tool, the NMR measurement data having an echo train affected by a motion artifact, wherein the motion artifact is related to a magnetic field magnitude that varies in a volume of interest due to a motion of the NMR tool. The method further includes reducing, with the processor, an effect on the NMR measurement data of the motion artifact by using a correcting inversion method that models the motion artifact to provide a corrected transverse relaxation time constant (T2) distribution, the correcting inversion method having a multiplicative term having a term that includes at least one local maximum and an optional decay term.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.