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Journal of Biomedical Optics

Exhaled air analysis using wideband wave number tuning range infrared laser photoacoustic spectroscopy
Author(s): Yury V. Kistenev; Alexey V. Borisov; Dmitry A. Kuzmin; Olga V. Penkova; Nadezhda Kostyukova; Alexey A. Karapuzikov
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Paper Abstract

The infrared laser photoacoustic spectroscopy (LPAS) and the pattern-recognition-based approach for noninvasive express diagnostics of pulmonary diseases on the basis of absorption spectra analysis of the patient’s exhaled air are presented. The study involved lung cancer patients ( N = 9 ), patients with chronic obstructive pulmonary disease ( N = 12 ), and a control group of healthy, nonsmoking volunteers ( N = 11 ). The analysis of the measured absorption spectra was based at first on reduction of the dimension of the feature space using principal component analysis; thereafter, the dichotomous classification was carried out using the support vector machine. The gas chromatography–mass spectrometry method (GC–MS) was used as the reference. The estimated mean value of the sensitivity of exhaled air sample analysis by the LPAS in dichotomous classification was not less than 90% and specificity was not less than 69%; the analogous results of analysis by GC–MS were 68% and 60%, respectively. Also, the approach to differential diagnostics based on the set of SVM classifiers usage is presented.

Paper Details

Date Published: 25 January 2017
PDF: 8 pages
J. Biomed. Opt. 22(1) 017002 doi: 10.1117/1.JBO.22.1.017002
Published in: Journal of Biomedical Optics Volume 22, Issue 1
Show Author Affiliations
Yury V. Kistenev, National Research Tomsk State Univ. (Russian Federation)
Siberian State Medical Univ. (Russian Federation)
Alexey V. Borisov, National Research Tomsk State Univ. (Russian Federation)
Siberian State Medical Univ. (Russian Federation)
Dmitry A. Kuzmin, National Research Tomsk State Univ. (Russian Federation)
Siberian State Medical Univ. (Russian Federation)
Olga V. Penkova, National Research Tomsk State Univ. (Russia)
Nadezhda Kostyukova, Special Technologies, Ltd. (Russian Federation)
Alexey A. Karapuzikov, Special Technologies, Ltd. (Russian Federation)


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