Breast imaging using electrical impedance tomography: Correlation of quantitative assessment with visual interpretation

Norhayati Mohd Zain, Kanaga Kumari Chelliah

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Background: Electrical impedance tomography (EIT) is a new non-invasive, mobile screening method which does not use ionizing radiation to the human breast; allows conducting quantitative assessment of the images besides the visual interpretation. The aim of this study was to correlate the quantitative assessment and visual interpretation of breast electrical impedance tomographs and associated factors. Materials and Methods: One hundred and fifty mammography patients above 40 years and undergoing EIT were chosen using convenient sampling. Visual interpretation of the images was carried out by a radiologist with minimum of three years experience using the breast imaging - electrical impedance (BI-EIM) classification for detection of abnormalities. A set of thirty blinded EIT images were reinterpreted to determine the intra-rater reliability using kappa. Quantitative assessment was by comparison of the breast average electric conductivity with the norm and correlations with visual interpretation of the images were determined using Chi-square. One-way ANOVA was used to compare the mean electrical conductivity between groups and t-test was used for comparisons with pre-existing Caucasians statistics. Independent t-tests were applied to compare the mean electrical conductivity of women with factors like exogenous hormone use and family history of breast cancer. Results: The mean electrical conductivity of Malaysian women was significantly lower than that of Caucasians (p<0.05). Quantitative assessment of electrical impedance tomography was significantly related with visual interpretation of images of the breast (p<0.05). Conclusions: Quantitative assessment of electrical impedance tomography images was significantly related with visual interpretation.

Original languageEnglish
Pages (from-to)1327-1331
Number of pages5
JournalAsian Pacific Journal of Cancer Prevention
Volume15
Issue number3
DOIs
Publication statusPublished - 2014

Fingerprint

Electric Impedance
Breast
Tomography
Electric Conductivity
Mammography
Ionizing Radiation
Analysis of Variance
Hormones
Breast Neoplasms

Keywords

  • Electrical impedance tomography
  • Quantitative assessment
  • Visual interpretation

ASJC Scopus subject areas

  • Oncology
  • Cancer Research
  • Public Health, Environmental and Occupational Health
  • Epidemiology

Cite this

Breast imaging using electrical impedance tomography : Correlation of quantitative assessment with visual interpretation. / Zain, Norhayati Mohd; Chelliah, Kanaga Kumari.

In: Asian Pacific Journal of Cancer Prevention, Vol. 15, No. 3, 2014, p. 1327-1331.

Research output: Contribution to journalArticle

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