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- W4248567141 abstract "The temporal relationship between changes in cerebral blood flow (CBF) and cerebral blood volume (CBV) is important in the biophysical modeling and interpretation of the hemodynamic response to activation, particularly in the context of magnetic resonance imaging and the blood oxygen level–dependent signal. Grubb et al. (1974) measured the steady state relationship between changes in CBV and CBF after hypercapnic challenge. The relationship CBVαCBFΦ has been used extensively in the literature. Two similar models, the Balloon (Buxton et al., 1998) and the Windkessel (Mandeville et al., 1999), have been proposed to describe the temporal dynamics of changes in CBV with respect to changes in CBF. In this study, a dynamic model extending the Windkessel model by incorporating delayed compliance is presented. The extended model is better able to capture the dynamics of CBV changes after changes in CBF, particularly in the return-to-baseline stages of the response." @default.
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- W4248567141 date "2004-12-01" @default.
- W4248567141 modified "2023-10-18" @default.
- W4248567141 title "A Model of the Dynamic Relationship Between Blood Flow and Volume Changes During Brain Activation" @default.
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- W4248567141 doi "https://doi.org/10.1097/00004647-200412000-00007" @default.
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