Invention Grant
- Patent Title: Correction of distortions in diffusion-weighted magnetic resonance imaging
- Patent Title (中): 扩散加权磁共振成像中畸变的校正
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Application No.: US12904312Application Date: 2010-10-14
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Publication No.: US08503752B2Publication Date: 2013-08-06
- Inventor: Thorsten Feiweier
- Applicant: Thorsten Feiweier
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agency: Schiff Hardin LLP
- Priority: DE102009049402 20091014
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
In a method and magnetic resonance apparatus for correction of image distortions that occur in acquisition of diffusion-weighted magnetic resonance images of an examination subject, a reference image is acquired without diffusion weighting, a first diffusion-weighted image is acquired for a diffusion direction, a second diffusion-weighted image is acquired for the same diffusion direction, with a different diffusion weighting or a different diffusion gradient polarity than the first diffusion-weighted image. The first diffusion-weighted image is deskewed with a first set of deskewing parameters, and the second diffusion-weighted image is deskewed with a second set of deskewing parameters. The deskewing parameters are correlated and determined by simultaneous minimization of differences between the deskewed first image and the reference image and differentiation between the deskewed second image and the reference image.
Public/Granted literature
- US20110085722A1 CORRECTION OF DISTORTIONS IN DIFFUSION-WEIGHTED MAGNETIC RESONANCE IMAGING Public/Granted day:2011-04-14
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