The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Experimental determination of the BOLD field strength dependence in vessels and tissue
Abstract
High resolution functional MRI (fMRI) experiments were performed in human visual cortex at 0.5, 1.5, and 4 T to determine the blood oxygenation level dependent (BOLD) field strength response within regions of obvious venous vessels and cortical gray matter (“tissue”). T2*‐weighted FLASH images were collected in single‐ and multi‐echo mode and used to determine the intrinsic BOLD parameters, namely, signal‐to‐noise ratio (Ψ), the apparent transverse relaxation rate (R 2*) and the change in R 2* (ΔR 2*) between the activated and baseline states. The authors find the average percentage signal change (ΔS/S, measured at TE = T2*) to be large in vessels (13.3 ± 2.3%, 18.4 ± 4.0%, and 15.1 ± 1.2%) compared with that in tissue (1.4 ± 0.7%, 1.9 ± 0.7%, and 3.3 ± 0.2%) at 0.5, 1.5, and 4 T, respectively. The signal‐to‐noise ratio in optimized, fully relaxed proton density weighted gradient echo images was found to increase linearly with respect to the static magnetic field strength (B 0). The predicted upper bound on BOLD contrast‐to‐noise ratio (ΔS/R)max as a function of field strength was calculated and found to behave less than linearly in voxels containing vessels larger than the voxel itself and greater than linearly in voxels containing a mixture of capillaries and veins/venules with a diameter less than that of the voxel.
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Cites
Functional connectivity in the motor cortex of resting human brain using echo‐planar mri
Biswal, B., Zerrin Yetkin, F., Haughton, V. M., & Hyde, J. S. (1995) · Magnetic Resonance in Medicine · doi:10.1002/mrm.1910340409 · Cited by 9,812
Brain magnetic resonance imaging with contrast dependent on blood oxygenation.
Ogawa, S., Lee, T. M., Kay, A. R., & Tank, D. W. (1990) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.87.24.9868 · Cited by 6,483
Dynamic magnetic resonance imaging of human brain activity during primary sensory stimulation.
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) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.89.12.5675 · Cited by 4,212
Functional mapping of the human visual cortex by magnetic resonance imaging
Belliveau, J. W., Kennedy, D. N., McKinstry, R. C., Buchbinder, B. R., Weisskoff, R. M., Cohen, M. S., Vevea, J. M., Brady, T. J., & Rosen, B. R. (1991) · Science · doi:10.1126/science.1948051 · Cited by 1,883
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Imaging iron stores in the brain using magnetic resonance imaging
Haacke, E. M., Cheng, N. Y. C., House, M. J., Liu, Q., Neelavalli, J., Ogg, R. J., Khan, A., Ayaz, M., Kirsch, W., & Obenaus, A. (2005) · Magnetic Resonance Imaging · doi:10.1016/j.mri.2004.10.001 · Cited by 995
Optimized EPI for fMRI studies of the orbitofrontal cortex
Deichmann, R., Gottfried, J. A., Hutton, C., & Turner, R. (2003) · NeuroImage · doi:10.1016/s1053-8119(03)00073-9 · Cited by 821
Wise, R. G., Ide, K., Poulin, M. J., & Tracey, I. (2004) · NeuroImage · doi:10.1016/j.neuroimage.2003.11.025 · Cited by 664
Triantafyllou, C., Hoge, R. D., Krueger, G., Wiggins, C. J., Potthast, A., Wiggins, G. C., & Wald, L. L. (2005) · NeuroImage · doi:10.1016/j.neuroimage.2005.01.007 · Cited by 648
Imaging attentional modulation of pain in the periaqueductal gray in humans
Tracey, I., Ploghaus, A., Gati, J. S., Clare, S., Smith, S., Menon, R. S., & Matthews, P. M. (2002) · The Journal of Neuroscience · doi:10.1523/jneurosci.22-07-02748.2002 · Cited by 569
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Metadata
- Authors
- Gati, J. S., Menon, R. S., Uǧurbil, K., & Rutt, B. K.
- Venue
- Magnetic Resonance in Medicine
- Publisher
- Wiley
- Published
- 1997-08
- Volume
- 38
- Issue
- 2
- Pages
- 296-302
- ISSN
- 0740-3194 (ISSN-L)
- 1522-2594
- OpenAlex
- W2028575667
- Cited by
- 523
- References
- 5
- FWCI
- 20.41
- Type
- journal article
- Language
- en
- Open access
- closed
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- Gati, J. S., Menon, R. S., Uǧurbil, K., & Rutt, B. K. (1997). Experimental determination of the BOLD field strength dependence in vessels and tissue. Magnetic Resonance in Medicine. https://doi.org/10.1002/mrm.1910380220
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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