Mechanisms in hydrocephalus revealed by neuroimaging
Mechanisms in hydrocephalus revealed by neuroimaging
Mechanisms in hydrocephalus revealed by neuroimaging
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How is dP Measured?<br />
• The pressure change (dP) dur<strong>in</strong>g the cardiac cycle is<br />
derived from the CSF pressure gradient (p), i.e., the<br />
pressure difference that causes the CSF to flow out from<br />
and back <strong>in</strong>to the cranium. 3<br />
• The Navier-Stokes equation is used to calculate CSF<br />
pressure gradient waveforms from the CSF velocities.<br />
dv/dt + v v-m v -p<br />
<strong>in</strong>ertial force<br />
viscous losses<br />
3-Loth FM, Yardimici MA, Alper<strong>in</strong> N. Jour. of Biomechanical<br />
Eng<strong>in</strong>eer<strong>in</strong>g. 2001, Vol. 123, pp. 71-79.<br />
Credit: Noam Alper<strong>in</strong>, U. of Miami
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