title: Large-scale referencing of the telemetric neurovent-P-tel intracranial pressure sensor in a porcine model.
abstract: The Neurovent-P-tel sensor is a promising device for telemetric intracranial pressure (ICP) measurements in cases of complex hydrocephalus. Data on its accuracy within a broad ICP range are missing. We applied a porcine model for large-scale manipulation of the ICP values. The telemetric ICP sensor was referenced against ICP values measured directly from a water column within a riser tube. A total of 34 comparative ICP measurements within an ICP range from 2 cm H2O to 31 mm Hg were performed. The mean difference between both measurement techniques was 0.4 mm Hg. The limits of agreement, where 95% of differences between both methods are expected, were from -2.4 to 3.1 mm Hg. The telemetric Neurovent-P-tel sensor system provides good accuracy within a broad range exceeding normal ICP values and might be useful in clinical practice.
authors.affiliation: Department of Neurosurgery, Charité Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Florian Baptist
authors.initials: FB
authors.lastname: Freimann
authors.forename: Christian
authors.initials: C
authors.lastname: Sprung
authors.forename: Sascha Santosh
authors.initials: SS
authors.lastname: Chopra
authors.forename: Peter
authors.initials: P
authors.lastname: Vajkoczy
authors.forename: Stefan
authors.initials: S
authors.lastname: Wolf
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D004867:Equipment Design; D005260:Female; D006801:Humans; D006849:Hydrocephalus / Q000175:diagnosis* / Q000000981:diagnostic imaging; D019586:Intracranial Hypertension / Q000175:diagnosis* / Q000000981:diagnostic imaging; D007427:Intracranial Pressure; D008991:Monitoring, Physiologic / Q000295:instrumentation* / Q000379:methods; D034421:Sus scrofa; D013686:Telemetry / Q000295:instrumentation* / Q000379:methods; D014057:Tomography, X-Ray Computed