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Acta Neurochir Suppl. 2016;122:97-100. doi: 10.1007/978-3-319-22533-3_19.

Validation of a New Minimally Invasive Intracranial Pressure Monitoring Method by Direct Comparison with an Invasive Technique.

Author information

1
University of São Paulo, Sao Paulo, Brazil.
2
SAPRA Assessoria, Sao Carlos, Brazil.
3
University of São Paulo, Sao Paulo, Brazil. sergiomascarenhas28@gmail.com.
4
Division of Neurosurgery, Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK.
5
University of Porto, Porto, Portugal.
6
Federal University of São Carlos, Sao Carlos, Brazil.

Abstract

In this chapter we present in vivo experiments with a new minimally invasive method of monitoring intracranial pressure (ICP). Strain gauge deformation sensors are externally glued onto the exposed skull. The signal from these sensors is amplified, filtered, and sent to a computer with appropriate software for analysis and data storage. Saline infusions into the spinal channel of rats were performed to produce ICP changes, and minimally invasive ICP and direct Codman intraparenchymal ICP were simultaneously acquired in six animals. The similarity between the invasive and minimally invasive methods in response to ICP increase was assessed using Pearson's correlation coefficient. It demonstrated good agreement between the two measures < r > = 0.8 ± 0.2, with a range of 0.31-0.99.

KEYWORDS:

Intracranial pressure (ICP); Medical instrumentation; Minimally invasive system; Monitoring

PMID:
27165885
DOI:
10.1007/978-3-319-22533-3_19
[Indexed for MEDLINE]

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