Verification of proton density change in spinal cord fMRI

Man Cheuk Ng; Kelvin Wong; Geng Li; Qi Yuan Ma; Edward S. Yang; Yang Hu; Keith D.K. Luk

Verification of proton density change in spinal cord fMRI

Man Cheuk Ng, Kelvin Wong, Geng Li, Qi Yuan Ma, Edward S. Yang, Yang Hu, Keith D.K. Luk

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

Abstract

The existence of a second contrast mechanism, Signal Enhancement due to Extravascular Proton, other than the Blood Oxygenation Level Dependent, was reported in functional magnetic resonance imaging studies of the brain and spinal cord. This mechanism was suggested to be due to the task-induced increase of extravascular proton density. In the current study, we are trying to show the existence of proton density change in the spinal cords by using low field proton density weighted magnetic resonance imaging. In the experiment, motor task with a block design paradigm was used to give stimulation to normal subjects. Activation correlating with neural anatomy was detected. This paper verifies that there is proton density change in the spinal cord during functional activation.

Original language	English (US)
Title of host publication	Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing
Editors	J.J. Villanueva
Pages	926-930
Number of pages	5
State	Published - Dec 1 2004
Event	Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing - Marbella, Spain Duration: Sep 6 2004 → Sep 8 2004

Other

Other	Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing
Country/Territory	Spain
City	Marbella
Period	9/6/04 → 9/8/04

Keywords

BOLD
FMRI
MRI
Proton density
SEEP
Spinal cord

ASJC Scopus subject areas

Engineering(all)

Cite this

Ng, MC, Wong, K, Li, G, Ma, QY, Yang, ES, Hu, Y & Luk, KDK 2004, Verification of proton density change in spinal cord fMRI. in JJ Villanueva (ed.), Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing., 452-249, pp. 926-930, Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing, Marbella, Spain, 9/6/04.

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title = "Verification of proton density change in spinal cord fMRI",

abstract = "The existence of a second contrast mechanism, Signal Enhancement due to Extravascular Proton, other than the Blood Oxygenation Level Dependent, was reported in functional magnetic resonance imaging studies of the brain and spinal cord. This mechanism was suggested to be due to the task-induced increase of extravascular proton density. In the current study, we are trying to show the existence of proton density change in the spinal cords by using low field proton density weighted magnetic resonance imaging. In the experiment, motor task with a block design paradigm was used to give stimulation to normal subjects. Activation correlating with neural anatomy was detected. This paper verifies that there is proton density change in the spinal cord during functional activation.",

keywords = "BOLD, FMRI, MRI, Proton density, SEEP, Spinal cord",

author = "Ng, {Man Cheuk} and Kelvin Wong and Geng Li and Ma, {Qi Yuan} and Yang, {Edward S.} and Yang Hu and Luk, {Keith D.K.}",

year = "2004",

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language = "English (US)",

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pages = "926--930",

editor = "J.J. Villanueva",

booktitle = "Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing",

note = "Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing ; Conference date: 06-09-2004 Through 08-09-2004",

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T1 - Verification of proton density change in spinal cord fMRI

AU - Ng, Man Cheuk

AU - Wong, Kelvin

AU - Li, Geng

AU - Ma, Qi Yuan

AU - Yang, Edward S.

AU - Hu, Yang

AU - Luk, Keith D.K.

PY - 2004/12/1

Y1 - 2004/12/1

N2 - The existence of a second contrast mechanism, Signal Enhancement due to Extravascular Proton, other than the Blood Oxygenation Level Dependent, was reported in functional magnetic resonance imaging studies of the brain and spinal cord. This mechanism was suggested to be due to the task-induced increase of extravascular proton density. In the current study, we are trying to show the existence of proton density change in the spinal cords by using low field proton density weighted magnetic resonance imaging. In the experiment, motor task with a block design paradigm was used to give stimulation to normal subjects. Activation correlating with neural anatomy was detected. This paper verifies that there is proton density change in the spinal cord during functional activation.

AB - The existence of a second contrast mechanism, Signal Enhancement due to Extravascular Proton, other than the Blood Oxygenation Level Dependent, was reported in functional magnetic resonance imaging studies of the brain and spinal cord. This mechanism was suggested to be due to the task-induced increase of extravascular proton density. In the current study, we are trying to show the existence of proton density change in the spinal cords by using low field proton density weighted magnetic resonance imaging. In the experiment, motor task with a block design paradigm was used to give stimulation to normal subjects. Activation correlating with neural anatomy was detected. This paper verifies that there is proton density change in the spinal cord during functional activation.

KW - BOLD

KW - FMRI

KW - MRI

KW - Proton density

KW - SEEP

KW - Spinal cord

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M3 - Conference contribution

AN - SCOPUS:11144268919

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BT - Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing

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T2 - Proceedings of the Fourth IASTED International Conference on Visualization, Imaging, and Image Processing

Y2 - 6 September 2004 through 8 September 2004

ER -

Verification of proton density change in spinal cord fMRI

Abstract

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Keywords

ASJC Scopus subject areas

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