NDLI: A study on three-dimensional visualization and quantitative analysis of Magnetic Source Images

Content Provider	IEEE Xplore Digital Library
Author	Shuo Dong Yuan Liu Hanmin Yan
Copyright Year	2011
Description	Author affiliation: Department of Medical Engineering, Xuanwu Hospital, Capital Medical University, Beijing, China (Shuo Dong; Yuan Liu; Hanmin Yan)
Abstract	Magnetic Source Imaging (MSI) is a neural functional imaging technique which combines Magnetic Resonance Imaging with Magnetoencephalography (MEG). Magnetic Source Images merge the brain function with its anatomic structure. Therefore MSI can position the lesions and important functional areas of the brain clearly and accurately. In this paper, we studied and discussed the 3D visualization and quantitative analysis of MSI, especially the 3D distance measurement of the dipoles. MRI volume was segmented and the gray matter was 3D reconstructed using VTK functions. Based on the landmark points (left ear former nest, right ear former nest and nasion) defined before MEG test, the information of dipoles exported from the source analysis software was visualized in the 3D render window after coordinate transformation. The coordinate position of interested dipoles was picked up using VTK tools, and the distance between two dipoles picked was calculated. As a result of 3D visualization, the abnormal discharge sources and important functional brain areas were rendered with the 3D brain model. The distance measurement result met the clinical demand with an average error of 0.2999mm and an average relative error of 0.7816%.
Starting Page	82
Ending Page	87
File Size	1494631
Page Count	6
File Format	PDF
ISBN	9781424493517
e-ISBN	9781424493524
DOI	10.1109/BMEI.2011.6098231
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Visualization Three-dimensional Visualization Magnetic resonance imaging Magnetoencephalography Ear Magnetic Source Image Three dimensional displays Distance measurement Biomedical imaging
Content Type	Text
Resource Type	Article

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