Evaluation of a microsensor intracranial pressure transducer

Shankar P. Gopinath, Leelamma Cherian, Claudia S. Robertson, Raj K. Narayan, Robert G. Grossman

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


This report describes the results of a laboratory evaluation of a new device for monitoring intracranial pressure (ICP), consisting of a miniature pressure transducer mounted on a pressure sensing diaphragm. In in vitro tests, 6 microsensor tranducers were monitored for drift at pressures of 10 mmHg and 20 mmHg. The maximal drift of any of the transducers was 1 mmHg over 9 days. In in vivo tests, the ICP measurement obtained with the microsensor tranducer correlated well with pressures recorded from a catheter in the cisternal magna with a Statham transducer over a wide range of ICP values (n = 511, r = 0.998, P < 0.001). If these laboratory findings can be duplicated in clinical studies, this microsensor transducer may be a useful alternative to the ventriculostomy catheter and other currently used devices for monitoring ICP.

Original languageEnglish (US)
Pages (from-to)11-15
Number of pages5
JournalJournal of Neuroscience Methods
Issue number1-2
StatePublished - Aug 1993


  • Intracranial pressure monitoring
  • Microsensor
  • Ventriculostomy

ASJC Scopus subject areas

  • Neuroscience(all)


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