Patent · US Active

Pulse sequence method for MRI

US9791534B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

CR Development AB · SE

Inventors

Daniel Topgaard · Lund, SE
Samo Lasic · Lund, SE
Markus Nilsson · Espoo, FI

Key dates

Filing date	May 3, 2013
Grant date	Oct 17, 2017
Priority date	—
Expiry date	Oct 1, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/56341
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention describes a method for magnetic resonance (MR) and/or MR imaging, comprising acquisition of signals and MR images originating from a RF and gradient sequence causing isotropic diffusion weighting of signal attenuation, wherein the isotropic diffusion weighting is achieved by one time-dependent dephasing vector q(t) having an orientation, wherein the isotropic diffusion weighting is proportional to the trace of a diffusion tensor D, and wherein the orientation of the time-dependent dephasing vector q(t) is either varied discretely in more than three directions in total, or changed continuously, or changed in a combination of discretely and continuously during the gradient pulse sequence, 0≦t≦echo time, where t represents the time. The method may be performed during a single shot (single MR excitation).

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