Displaying raw MEG measurements with FreeSurfer

Sarah M. Rugheimer; Qiang Liu; Robert J. Sclabassi; Mingui Sun

Displaying raw MEG measurements with FreeSurfer

Sarah M. Rugheimer^*, Qiang Liu, Robert J. Sclabassi, Mingui Sun

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Magnetoencephalography (MEG) is a non-invasive technique of functional imaging which measures weak magnetic fields in the brain due to the currents generated from neural synapses. MEG systems contain a couple of hundred channels, making it difficult to visualize the raw measurements directly. As an alternative to rendering epileptic data, we demonstrate how MEG measurements can be mapped to a cortical surface by using a software package called FreeSurfer. We fuse MEG data with Magnetic Resonance Image (MRI) by plotting the MEG amplitude on top of the MRI images of gray matter surface. In addition to the surface, we render the MEG intensity in the convoluted regions, e.g. sulci, by computationally "inflating" the brain. These techniques are utilized for experimental study currently, and can be extended for diagnostic purposes in the future.

Original language	English
Title of host publication	Proceedings of the IEEE 32nd Annual Northeast Bioengineering Conference, 2006
Pages	59-60
Number of pages	2
Volume	2006
Publication status	Published - 2006

Cite this

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title = "Displaying raw MEG measurements with FreeSurfer",

abstract = "Magnetoencephalography (MEG) is a non-invasive technique of functional imaging which measures weak magnetic fields in the brain due to the currents generated from neural synapses. MEG systems contain a couple of hundred channels, making it difficult to visualize the raw measurements directly. As an alternative to rendering epileptic data, we demonstrate how MEG measurements can be mapped to a cortical surface by using a software package called FreeSurfer. We fuse MEG data with Magnetic Resonance Image (MRI) by plotting the MEG amplitude on top of the MRI images of gray matter surface. In addition to the surface, we render the MEG intensity in the convoluted regions, e.g. sulci, by computationally {"}inflating{"} the brain. These techniques are utilized for experimental study currently, and can be extended for diagnostic purposes in the future.",

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AU - Rugheimer, Sarah M.

AU - Liu, Qiang

AU - Sclabassi, Robert J.

AU - Sun, Mingui

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N2 - Magnetoencephalography (MEG) is a non-invasive technique of functional imaging which measures weak magnetic fields in the brain due to the currents generated from neural synapses. MEG systems contain a couple of hundred channels, making it difficult to visualize the raw measurements directly. As an alternative to rendering epileptic data, we demonstrate how MEG measurements can be mapped to a cortical surface by using a software package called FreeSurfer. We fuse MEG data with Magnetic Resonance Image (MRI) by plotting the MEG amplitude on top of the MRI images of gray matter surface. In addition to the surface, we render the MEG intensity in the convoluted regions, e.g. sulci, by computationally "inflating" the brain. These techniques are utilized for experimental study currently, and can be extended for diagnostic purposes in the future.

AB - Magnetoencephalography (MEG) is a non-invasive technique of functional imaging which measures weak magnetic fields in the brain due to the currents generated from neural synapses. MEG systems contain a couple of hundred channels, making it difficult to visualize the raw measurements directly. As an alternative to rendering epileptic data, we demonstrate how MEG measurements can be mapped to a cortical surface by using a software package called FreeSurfer. We fuse MEG data with Magnetic Resonance Image (MRI) by plotting the MEG amplitude on top of the MRI images of gray matter surface. In addition to the surface, we render the MEG intensity in the convoluted regions, e.g. sulci, by computationally "inflating" the brain. These techniques are utilized for experimental study currently, and can be extended for diagnostic purposes in the future.

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M3 - Conference contribution

AN - SCOPUS:33751093795

SN - 0780395638

SN - 9780780395633

VL - 2006

SP - 59

EP - 60

BT - Proceedings of the IEEE 32nd Annual Northeast Bioengineering Conference, 2006

ER -

Displaying raw MEG measurements with FreeSurfer

Abstract

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