The conductivity of neonatal piglet skulls

Shilpa Pant, Tang Te, Aaron Tucker, Rosalind J. Sadleir

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

We report the first measured values of conductivities for neonatal mammalian skull samples. We measured the average radial (normal to the skull surface) conductivity of fresh neonatal piglet skull samples at 1 kHz and found it to be around 30 mS m -1 at ambient room temperatures of about 23 °C. Measurements were made on samples of either frontal or parietal cranial bone, using a saline-filled cell technique. The conductivity value we observed was approximately twice the values reported for adult skulls (Oostendorp et al 2000 IEEE Trans. Biomed. Eng. 47 1487-92) using a similar technique, but at a frequency of around 5 Hz. Further, we found that the conductivity of skull fragments increased linearly with thickness. We found evidence that this was related to differences in composition between the frontal and parietal bone samples tested, which we believe is because frontal bones contained a larger fraction of higher conductivity cancellous bone material.

Original languageEnglish (US)
Pages (from-to)1275-1283
Number of pages9
JournalPhysiological Measurement
Volume32
Issue number8
DOIs
StatePublished - Aug 2011
Externally publishedYes

Keywords

  • Biological tissues
  • electrical conductivity
  • neonatal
  • skull

ASJC Scopus subject areas

  • Biophysics
  • Physiology
  • Biomedical Engineering
  • Physiology (medical)

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