MRI-aided diffuse optical tomography

Home > Archive>Volume 31, Issue 5, 2012 >425-430

MRI-aided diffuse optical tomography
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                        CHEN Chun-XiaoCHEN Chun-Xiao
Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics
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WANG RuiWANG Rui
Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics
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WU Jia-NiWU Jia-Ni
Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing
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TENG Gao-JunTENG Gao-Jun
Department of Radiology, Zhongda Hospital, Southeast University
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Affiliation:Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics,Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics,Department of Biomedical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,Department of Radiology, Zhongda Hospital, Southeast University
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Abstract:

T1 weighted magnetic resonance imaging of the brain was segmented into scalp, skull, cerebrospinal fluid, gray matter and white matter, and then meshed in volume with different tissues. The volumetric mesh based on subject specific anatomy was used to build forward optical model and reconstruct image in the diffuse optical tomography for solving low position-accuracy, ill-condition and under-determined problems caused by hemisphere model or brain atlas. In the visual experiments of counter-clockwise wedge stimulus and expanding ring stimulus, the diffuse optical tomography guided by magnetic resonance imaging can obtain higher space resolution and more accurate position for activated oxygenated haemoglobin signals.

Key words:image segmentation; volume mesh; magnetic resonance imaging; diffuse optical tomography

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CHEN Chun-Xiao, WANG Rui, WU Jia-Ni, TENG Gao-Jun. MRI-aided diffuse optical tomography[J]. Journal of Infrared and Millimeter Waves,2012,31(5):425~430

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Received:June 18,2011
Revised:August 09,2011
Adopted:August 11,2011
Online: October 31,2012
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