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Assessment of different data representations and averaging methods on the Spiegelberg compliance device

  • Conference paper
Intracranial Pressure and Brain Monitoring XII

Part of the book series: Acta Neurochirurgica Supplementum ((NEUROCHIRURGICA,volume 95))

Summary

The Spiegelberg Compliance Device (Spiegelberg KG, Hamburg, Germany) has been available for the automated measurement and calculation of minute by minute intracranial compliance. Widespread practical use has been somewhat limited by the instability of values; especially at low intracranial pressures.

We looked at two aspects of a methodology in an attempt to increase the value of the Spiegelberg device in the clinical setting. Firstly, we discussed the difference in representing measured values as elastance (dp/dv) instead of compliance (dv/dp); and secondly we proposed the use of an averaging algorithm called the Exponentially Weighted Moving Average (ewma), which could be applied as a flexible method to follow trends and rapid changes in the elastance (or compliance).

Clinical data from sixteen patients were gathered and statistical analysis was focused on three particular aspects, the coefficient of variation which indicates the variability of data values, the correlation between the elastance (or compliance) time series and the underlying ICP signal and the percentage of outliers greater than 2.5 standard deviations from the mean. Our results showed that expressing elastance (dp/dv) instead of compliance (dv/dp) yielded fewer outliers and had a better correlation to ICP, and the ewma method had a better correlation to ICP than the Spiegelberg method.

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References

  1. Czosnyka M, Czosnyka Z, Pickard J, et al (1997) Laboratory testing of the Spiegelberg brain pressure monitor: A technical report. J Neurol Neurosurg Psychiat 63: 732–735

    Article  PubMed  CAS  Google Scholar 

  2. Kiening KL, Schoening WN, Stover JF, Unterberg AW (2003) Continuous monitoring of intracranial compliance after severe head injury: relation to data quality, intracranial pressure and brain tissue PO2. Br J Neurosurg 17: 340–346

    Article  PubMed  Google Scholar 

  3. Maset AL, Marmarou A, Ward JD, et al (1987) Pressurevolume index in head injury. J Neurosurg 67: 832–840

    Article  PubMed  CAS  Google Scholar 

  4. Miller JD, Pickard JD (1974) Intracranial volume pressure studies in patients with head injury. Injury 5: 265–268

    Article  PubMed  CAS  Google Scholar 

  5. Piper I, Citerio G, Chambers I, Contant C, Enblad P, Fiddes H, Howells T, Kiening K, Nilsson P, Yau YH for the Brain IT Group (2003) The Brain IT Group: Concept and Core Dataset Definition. Acta Neurochir (Wien) 145(8): 615–628

    Article  CAS  Google Scholar 

  6. Piper I, Dunn L, Contant C, Yau Y, Whittle I, Citerio G, Kiening K, Schoening W, Ng S, Poon W, Enblad P, Nilsson P (2000) Multi-centre assessment of the Spiegelberg compliance monitor: preliminary results. Acta Neurochir [Suppl] 76: 491–494

    CAS  Google Scholar 

  7. Piper IR, Spiegelberg A, Whittle I, Signorini D, Mascia L (1999) A comparative study of the Spiegelberg compliance device with a manual volume-injection method: a clinical evaluation in patients with hydrocephalus. Br J Neurosurg 13: 581–586

    Article  PubMed  CAS  Google Scholar 

  8. Yau YH, Piper IR, Clutton RE, Whittle IR (2000) Experimental evaluation of the Spiegelberg intracranial pressure and intracranial compliance monitor. Technical note. J Neurosurg 93: 1072–1077

    PubMed  CAS  Google Scholar 

  9. Yau YH, Piper IR, Clutton RE, Whittle IR (2002) An experimental evaluation of a new intraparenchymal continuous compliance probe: preliminary studies. Acta Neurochir [Suppl] 81: 181–182

    CAS  Google Scholar 

  10. Yau Y, Piper I, Contant C, Citerio G, Kiening K, Enblad P, Nilsson P, Ng S, Wasserberg J, Kiefer M, Poon W, Dunn L, Whittle I (2002) Multi-centre assessment of the Spiegelberg compliance monitor: interim results. Acta Neurochir [Suppl] 81: 167–170

    CAS  Google Scholar 

  11. Yau YH, Piper IR, Contant CF, Dunn LT, Whittle IR (2002) Clinical experience in the use of the Spiegelberg automated compliance device in the assessment of patients with hydrocephalus. Acta Neurochir [Suppl] 81: 171–172

    CAS  Google Scholar 

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Author information

Authors and Affiliations

  1. Department of Clinical Neurosciences, Western General Hospital, Edinburgh, EH4 2GA, UK

    Y. H. Yau & I. R. Whittle

  2. Institute of Neurological Sciences, Southern General Hospital, Glasgow, UK

    I. R. Piper & L. Dunn

  3. Department of Neurosurgery, Baylor College of Medicine, Houston, USA

    C. Contant

Authors
  1. Y. H. Yau
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  2. I. R. Piper
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  3. C. Contant
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  4. L. Dunn
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  5. I. R. Whittle
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Corresponding author

Correspondence to Y. H. Yau .

Editor information

Editors and Affiliations

  1. Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China

    Wai S. Poon , Matthew T. V. Chan , Keith Y. C. Goh , Joseph M. K. Lam  & Stephanie C. P. Ng , , ,  & 

  2. Medical College of Virginia Commonwealth University, Virginia, USA

    Anthony Marmarou

  3. Academisch Ziekenhuis Dijkzigt, Erasmus University Rotterdam, Rotterdam, The Netherlands

    Cees J. J. Avezaat

  4. Addenbrooke’s Hospital, University of Cambridge, Cambridge, UK

    John D. Pickard , Marek Czosnyka  & Peter J. A. Hutchinson ,  & 

  5. School of Medicine, Nihon University, Tokyo, Japan

    Yoichi Katayama

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© 2005 Springer-Verlag

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Yau, Y.H., Piper, I.R., Contant, C., Dunn, L., Whittle, I.R. (2005). Assessment of different data representations and averaging methods on the Spiegelberg compliance device. In: Poon, W.S., et al. Intracranial Pressure and Brain Monitoring XII. Acta Neurochirurgica Supplementum, vol 95. Springer, Vienna. https://doi.org/10.1007/3-211-32318-X_59

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  • DOI: https://doi.org/10.1007/3-211-32318-X_59

  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-211-24336-7

  • Online ISBN: 978-3-211-32318-2

  • eBook Packages: MedicineMedicine (R0)

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