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1. (WO2016064497) METHODS AND SYSTEMS FOR NORMALIZING CONTRAST ACROSS MULTIPLE ACQUISITIONS

Pub. No.:    WO/2016/064497    International Application No.:    PCT/US2015/050705
Publication Date: Fri Apr 29 01:59:59 CEST 2016 International Filing Date: Fri Sep 18 01:59:59 CEST 2015
IPC: A61B 6/00
G06T 5/00
Applicants: GENERAL ELECTRIC COMPANY
Inventors: NETT, Brian Edward
MIAO, Chuang
Title: METHODS AND SYSTEMS FOR NORMALIZING CONTRAST ACROSS MULTIPLE ACQUISITIONS
Abstract:
Various methods and systems are provided for correcting contrast banding artifacts across multiple acquisitions in reconstructed images. In one embodiment, a method for computed tomography imaging comprises generating an original image comprising multiple subvolumes, segmenting the original image into different structures for each subvolume, selectively applying a mask-based correction through each area of subvolume that includes continuous structures to generate an updated image, and performing streak correction between the original image and the updated image to generate a final image. In this way, image quality may be improved without adjusting anatomical structures in an image.