Patent · US Active

System and method for background phase correction for phase contrast flow images

US8897519B2 · kind B2 · utility

3Cited by

8References

16Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jens Gühring · Monmouth Junction, US
Marie-Pierre Jolly · Fryeburg, US
Hui Xue · Hunan, CN

Key dates

Filing date	Aug 16, 2011
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Apr 21, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/5608
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for correcting the background phase in magnetic resonance phase contrast flow images includes providing a time series of velocity encoded magnetic resonance images of a patient, where the time series of velocity encoded images comprises for each time point a phase contrast image where a pixel intensity is proportional to a flow velocity, measuring a change of intensity for each pixel over the time series of phase contrast images, identifying pixels with a low measure of temporal change as stationary pixels, and calculating a correction field for the stationary pixels, where the correction field represents a background phase to be subtracted from the phase contrast image.

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