Invention Grant
- Patent Title: Method and system for improved classification of constituent materials
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Application No.: US15532680Application Date: 2015-12-02
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Publication No.: US10436858B2Publication Date: 2019-10-08
- Inventor: Dattesh Dayanand Shanbhag , Rakesh Mullick , Sheshadri Thiruvenkadam , Florian Wiesinger , Sudhanya Chatterjee , Kevin Matthew Koch
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Priority: IN6113/CHE/2014 20141204
- International Application: PCT/US2015/063392 WO 20151202
- International Announcement: WO2016/089976 WO 20160609
- Main IPC: G01R33/565
- IPC: G01R33/565 ; G01R33/24 ; A61B5/055 ; A61B5/00 ; G01R33/56 ; G01R33/48

Abstract:
An imaging system and method are disclosed. An MR image and measured B0 field map of a target volume in a subject are reconstructed, where the MR image includes one or more bright and/or dark regions. One or more distinctive constituent materials corresponding to the bright regions are identified. Each dark region is iteratively labeled as one or more ambiguous constituent materials. Susceptibility values corresponding to each distinctive and iteratively labeled ambiguous constituent material is assigned. A simulated B0 field map is iteratively generated based on the assigned susceptibility values. A similarity metric is determined between the measured and simulated B0 field maps. Constituent materials are identified in the dark regions based on the similarity metric to ascertain corresponding susceptibility values. The MRI data is corrected based on the assigned and ascertained susceptibility values. A diagnostic assessment of the target volume is determined based on the corrected MRI data.
Public/Granted literature
- US20170371010A1 METHOD AND SYSTEM FOR IMPROVED CLASSIFICATION OF CONSTITUENT MATERIALS Public/Granted day:2017-12-28
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