Mechanisms in hydrocephalus revealed by neuroimaging
Mechanisms in hydrocephalus revealed by neuroimaging
Mechanisms in hydrocephalus revealed by neuroimaging
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How is Compliance Measured Invasively?<br />
•Marmarou et. al. J. Neurosurg, 1975<br />
Compliance = dV/dP<br />
Apparent Compliance = DV/(Pp-Po)<br />
DV <strong>in</strong> the order of several mL is used to overcome pressure pulsation<br />
MRICP is the non<strong>in</strong>vasive analogous of the volume-pressure response<br />
method, except that it does not <strong>in</strong>terfere with the craniosp<strong>in</strong>al hydrodynamics.<br />
MRICP measures the naturally occurr<strong>in</strong>g dV and dP with each heart beat.<br />
Credit: Noam Alper<strong>in</strong>, U. of Miami
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