Comparing MR Estimate of Intracranial Pressure with Valve Opening Pressure in Shunted Patients

Noam Alperin¹, Marc Muehlmann², Inga Koerte², Markus Lehner², Aurelia Peraud², Birgit Ertl-Wagner²

Reliable noninvasive MR measurement of intracranial pressure (MRICP) may have an important diagnostic role in neurosurgical problems related to altered CSF dynamics. The reliability of the MRICP methodology was assessed by comparing derived MRICP values with shunt opening pressure setup in shunted patients with various CSF related disorders. Under the assumption that ICP values in these patients is well approximated by the shunt opening pressure, a reliable noninvasive estimate of ICP should demonstrate a good correspondence between these two values.