Design and efficacy of a head-coil bite bar for reducing movement-related artifacts during functional MRI scanning
This article describes the design, construction, application, and effectiveness of a simple bite bar for use with an MRI whole-head coil to reduce head-movement-related artifacts during functional brain imaging. The device is comfortable to use and allows considerable flexibility in positioning the subject’s head. Eleven subjects were scanned while performing a motor-sequencing experiment with and without the bite bar. The bite bar was generally effective in reducing maximum head movement to less than 0.5 mm (translation) and 0.5° (rotation).
- Bandettini, P. A., Wong, E. C., Hinks, R. S., &Hyde, J. S. (1992). Time course EPI of human brain function during task activation.Magnetic Resonance in Medicine,25, 390–397. CrossRef
- Blamire, A. M., Ogawa, S., Ugurbil, K., Rothman, D., Mc-Carthy, G., Ellermann, J. M., Hyder, F., Rattner, Z., &Shulman, R. G. (1992). Dynamic mapping of the human visual cortex by high-speed magnetic resonance imaging.Proceedings of the National Academy of Sciences,89, 11069–11073. CrossRef
- Cohen, J., MacWhinney, B., Flatt, M., &Provost, J. (1993). PsyScope: An interactive graphic system for designing and controlling experiments in the psychology laboratory using Macintosh computers.Behavior Research Methods, Instruments, & Computers,25, 257–271.
- Friston, K. J., Holmes, A. P., Worsley, K. J., Poline, J. P., Frith, C. D., &Frackowiak, R. S. J. (1995). Statistical parametric maps in functional imaging: A general linear approach.Human Brain Mapping,2, 189–210. CrossRef
- Friston, K., Williams, S. R., Howard, R., Frackowiak, R. S. J., &Turner, R. (1996). Movement-related effects in fMRI time-series.Magnetic Resonance in Medicine,35, 346–355.
- Kwong, K. K., Belliveau, J. W., Chesler, D. A., Goldberg, I. E., Weisskoff, R. M., Poncelet, B. P., Kennedy, D. N., Hoppel, B. E., Cohen, M. S., &Turner, R. (1992). Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation.Proceedings of the National Academy of Sciences,89, 5675–5679. CrossRef
- Le Bihan, D., Jezzard, P., Haxby, J., Sadato, N., Rueckert, L., &Mattay, V. (1995). Functional magnetic resonance imaging of the brain.Annals of Internal Medicine,122, 296–303.
- Menon, V., Johnson, J., Sullivan, E. V., Lim, K. O., Glover, G. H., &Pfefferbaum, A. (1996). Functional MRI activation of multiple basal ganglia-thalamocortical sites during self-generated sequences of arm movements.Society for Neuroscience Abstracts,22, 1085.
- Moseley, M. E., &Glover, G. H. (1995). Functional MR imaging: Capabilities and limitations.Neuroimaging Clinics of North America,5, 161–191.
- Snyder, A. Z. (1995). Difference image vs. ratio image error function forms in PET-PET realignment. In R. Myer, V. J. Cunningham, D. L. Bailey, & T. Jones (Eds.),Quantification of brain function using PET (pp. 131–137). San Diego: Academic Press.
- Design and efficacy of a head-coil bite bar for reducing movement-related artifacts during functional MRI scanning
Behavior Research Methods, Instruments, & Computers
Volume 29, Issue 4 , pp 589-594
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- 1. Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 94305, Stanford, CA
- 2. Veterans Affairs Palo Alto Health Care System, Palo Alto, California