Abstract
Cerebral fluid (CSF) in the cranial cavity flows toward the spinal CSF space in a to and fro manner, responding to the pulsations of the brain. Therefore, the signal intensity of the CSF on magnetic resonance imaging (MRI) is affected and changed by the velocity of CSF flow (Bradley et al. 1986, Sherman and Citrin 1986). In general, the signal intensity of flowing fluid becomes less when the flow velocity is greater. Fluid flowing rapidly beyond some threshold value loses its signal on MRI. This is termed the signal void phenomenon (SVP).
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References
Bradley WG, Kortman KE, Burgoyne B (1986) Flowing cerebrospinal fluid in normal and hydrocephalic states: appearance on MR images. Radiology 159:611–616
Ridgway JP, Turnbull LW, Smith MA (1986) A phase imaging technique and its use to measure low velocities in pulsatile CSF flow. In: Abstracts of annual meeting of society of magnetic resonance in medicine. Montreal, Radda GK (president), pp 108–109
Sherman JL, Citrin CM (1986) Magnetic resonance demonstration of normal CSF flow. AJNR 7:3–6
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© 1989 Springer-Verlag Berlin Heidelberg
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Ohara, S., Nagai, H., Ueda, Y. (1989). CSF Pulsatile Flow on MRI and Its Relation to Intracranial Pressure. In: Hoff, J.T., Betz, A.L. (eds) Intracranial Pressure VII. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-73987-3_109
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DOI: https://doi.org/10.1007/978-3-642-73987-3_109
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-73989-7
Online ISBN: 978-3-642-73987-3
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