Patent · US Active

Method and magnetic resonance imaging apparatus for compensating contrast inhomogeneities in magnetic resonance images

US7603157B2 · kind B2 · utility

8Cited by

13References

14Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thorsten Feiweier · Peising, DE
Franz Hebrank · Herzogenaurach, DE

Key dates

Filing date	Aug 19, 2004
Grant date	Oct 13, 2009
Priority date	—
Expiry date	Aug 27, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/5659
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a method and magnetic resonance apparatus for compensation of contrast inhomogeneities in magnetic resonance images caused by spatial distributions of the radio frequency field associated with the radio frequency pulses that are emitted in order to acquire magnetic resonance (MR) data, multiple individual MR images of a particular region of a subject are recorded with different radio frequency pulse sequences leading to different flip angles. A common contrast-homogenized image for the affected region then is generated based on the different individual images, so that within the contrast-homogenized image, intensity variations due to a distribution of the flip angle are smaller than in the individual images, at least in some areas.

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