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Slow vasomotor fluctuation in fMRI of anesthetized child brain
Abstract
Steady-state arterial spin tagging approaches can provide quantitative images of CBF, but have not been validated in humans. The work presented here compared CBF values measured using steady-state arterial spin tagging with CBF values measured in the same group of human subjects using the H(2)(15)O IV bolus PET method. Blood flow values determined by H(2)(15)O PET were corrected for the known effects of incomplete extraction of water across the blood brain barrier. For a cortical strip ROI, blood flow values determined using arterial spin tagging (64+/-12 cc/100 g/min) were not statistically different from corrected blood flow values determined using H(2)(15)O PET (67+/-13 cc/100 g/min). However, for a central white matter ROI, blood flow values determined using arterial spin tagging were significantly underestimated compared to corrected blood flow values determined using H(2)(15)O PET. This underestimation could be caused by an underestimation of the arterial transit time for white matter regions.
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“followed soon after by similar findings of bilaterally correlated activity in early visual and early auditory cortex (Cordes et al., 2001; Kiviniemi et al., 2000; Lowe et al., 1998).”
From Development of large-scale functional networks from birth to adulthood: A guide to the neuroimaging literature (2017) · cites this paper as Kiviniemi et al., 2000
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“Seed-based and component-based approaches demonstrate the existence of robust, bilateral segregated networks for somatomotor, primary auditory, primary visual, and extrastriate visual cortex (Fransson et al., 2007; Gao et al., 2015a; Kiviniemi et al., 2000; Lin et al., 2008; Liu et al., 2008; Smyser et al., 2010).”
From Development of large-scale functional networks from birth to adulthood: A guide to the neuroimaging literature (2017) · cites this paper as Kiviniemi et al., 2000
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“Prospective acquisition correction (PACE) was applied to adjust slice position and orientation, as well as to re-grid residual volume-to-volume motion in real-time during data acquisition for the purpose of reducing motion-induced effects in Study 2 (Thesen et al., 2000).”
From Caloric deprivation increases responsivity of attention and reward brain regions to intake, anticipated intake, and images of palatable foods (2013) · cites this paper as Thesen et al., 2000
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Metadata
- Authors
- Kiviniemi, V., Jauhiainen, J., Tervonen, O., P��kk�, E., Oikarinen, J., Vainionp��, V., Rantala, H., & Biswal, B.
- Venue
- Magnetic Resonance in Medicine
- Published
- 2000
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- Kiviniemi, V., Jauhiainen, J., Tervonen, O., P��kk�, E., Oikarinen, J., Vainionp��, V., Rantala, H., & Biswal, B. (2000). Slow vasomotor fluctuation in fMRI of anesthetized child brain. Magnetic Resonance in Medicine. https://doi.org/10.1002/1522-2594(200009)44%3A3
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