Novel EIS postprocessing algorithm for breast cancer diagnosis

A new postprocessing algorithm was developed for the diagnosis of breast cancer using electrical impedance scanning. This algorithm automatically recognizes bright focal spots in the conductivity map of the breast. Moreover, this algorithm discriminates between malignant and benign/normal tissues us...

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Bibliographic Details
Published in:IEEE transactions on medical imaging 2002-06, Vol.21 (6), p.710-712
Main Authors: Glickman, Y.A., Filo, O., Nachaliel, U., Lenington, S., Amin-Spector, S., Ginor, R.
Format: Article
Language:English
Subjects:
Admittance
Algorithms
Biomedical imaging
Biopsy
Breast cancer
Breast Neoplasms - classification
Breast Neoplasms - diagnosis
Breast Neoplasms - pathology
Conductivity
Electric Impedance
Electric impedance tomography
Female
Frequency
Humans
Image Interpretation, Computer-Assisted - methods
Impedance
Lesions
Medical diagnostic imaging
Middle Aged
Reproducibility of Results
Scanning
Sensitivity and Specificity
Testing
Tomography - methods
Tumors
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Summary:A new postprocessing algorithm was developed for the diagnosis of breast cancer using electrical impedance scanning. This algorithm automatically recognizes bright focal spots in the conductivity map of the breast. Moreover, this algorithm discriminates between malignant and benign/normal tissues using two main predictors: phase at 5 kHz and crossover frequency, the frequency at which the imaginary part of the admittance is at its maximum. The thresholds for these predictors were adjusted using a learning group consisting of 83 carcinomas and 378 benign cases. In addition, the algorithm was verified on an independent test group including 87 carcinomas, 153 benign cases and 356 asymptomatic cases. Biopsy was used as gold standard for determining pathology in the symptomatic cases. A sensitivity of 84% and a specificity of 52% were obtained for the test group.
ISSN:0278-0062
1558-254X
DOI:10.1109/TMI.2002.800605