University of Hertfordshire

Towards a Patient-Specific Model of Lung Volume Using Absolute Electrical Impedance Tomography (aEIT)

Research output: Chapter in Book/Report/Conference proceedingChapter (peer-reviewed)

  • S. Mohamed-Samuri
  • G. Panoutsos
  • M. Mahfouf
  • G.H. Mills
  • Mouloud Denai
  • B.H. Brown
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Original languageEnglish
Title of host publicationBiomedical Engineering Systems and Technologies
Subtitle of host publication4th International Joint Conference, BIOSTEC 2011, Rome, Italy, January 26-29, 2011, Revised Selected Papers
PublisherSpringer
Pages191-204
Number of pages13
ISBN (Electronic)978-3-642-29752-6
ISBN (Print)978-3-642-29751-9
DOIs
Publication statusPublished - 2013

Publication series

NameCommunications in Computer and Information Science
Volume273

Abstract

Electrical Impedance Tomography (EIT), and in particular its application to pulmonary measurement, has been the subject of intensive research since its development in the early 1980s by Barber and Brown. One of the relatively recent advances in EIT is the development of an absolute EIT system (aEIT) which can estimate absolute values of lung resistivity and associated lung volumes. In this paper we present a new approach based on Computational Intelligence (CI) modelling to model the ‘Resistivity - Lung Volume’ relationship that will allow more accurate lung volume estimations using data from eight (8) healthy volunteers measured simultaneously via the Sheffield aEIT system and a Spirometer. The developed models show an improved accuracy in the prediction of lung volumes, as compared with the original Sheffield aEIT system. However the inter-individual differences observed in the subject-specific modelling behaviour of the ‘Resistivity-Lung Volume’ curves suggest that a model extension is needed, whereby the modelling structure auto-calibrates to account for subject (or patient-specific) inter-parameter variability

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