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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 27:354-355, February 2006
© 2006 American Society of Neuroradiology

TECHNICAL NOTE
SPINE

Recording CSF Pressure with a Transducer-Tipped Wire in an Animal Model of Chiari I

A. Turk^a, B.J. Iskandar^b, V. Haughton^a and D. Consigny^a

^a Department of Radiology, University of Wisconsin, Madison, Wis
^b Department of Neurosurgery, University of Wisconsin, Madison, Wis

Address correspondence to Victor Haughton, MD, University of Wisconsin, 600 Highland Avenue, Department of Radiology, Madison, WI 53792-3252

SUMMARY: In dogs, a wire with a pressure-sensitive transducer was inserted percutaneously into the subarachnoid space and manipulated under fluoroscopic monitoring in the posterior fossa or upper cervical spinal canal. Pressure recordings from the wire showed fluctuations in pressure corresponding to the cardiac cycle. When a balloon was distended in the foramen magnum, maximum and minimum pressures increased. Continuous monitoring of CSF pressure remote from the site of cannulation was feasible with a wire-based pressure transducer.