Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue

Breast conserving resection with free margins is the gold standard treatment for early breast cancer recommended by guidelines worldwide. Therefore, reliable discrimination between normal and malignant tissue at the resection margins is essential. In this study, normal and abnormal tissue samples fr...

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Main Authors: Selin Guergan, Bettina Boeer, Regina Fugunt, Gisela Helms, Carmen Roehm, Anna Solomianik, Alexander Neugebauer, Daniela Nuessle, Mirjam Schuermann, Kristin Brunecker, Ovidiu Jurjut, Karen A. Boehme, Sascha Dammeier, Markus D. Enderle, Sabrina Bettio, Irene Gonzalez-Menendez, Annette Staebler, Sara Y. Brucker, Bernhard Kraemer, Diethelm Wallwiener, Falko Fend, Markus Hahn
Format: Article
Language:English
Published: MDPI AG 2024-02-01
Series:Diagnostics
Subjects:
Online Access:https://www.mdpi.com/2075-4418/14/3/338
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author Selin Guergan
Bettina Boeer
Regina Fugunt
Gisela Helms
Carmen Roehm
Anna Solomianik
Alexander Neugebauer
Daniela Nuessle
Mirjam Schuermann
Kristin Brunecker
Ovidiu Jurjut
Karen A. Boehme
Sascha Dammeier
Markus D. Enderle
Sabrina Bettio
Irene Gonzalez-Menendez
Annette Staebler
Sara Y. Brucker
Bernhard Kraemer
Diethelm Wallwiener
Falko Fend
Markus Hahn
author_facet Selin Guergan
Bettina Boeer
Regina Fugunt
Gisela Helms
Carmen Roehm
Anna Solomianik
Alexander Neugebauer
Daniela Nuessle
Mirjam Schuermann
Kristin Brunecker
Ovidiu Jurjut
Karen A. Boehme
Sascha Dammeier
Markus D. Enderle
Sabrina Bettio
Irene Gonzalez-Menendez
Annette Staebler
Sara Y. Brucker
Bernhard Kraemer
Diethelm Wallwiener
Falko Fend
Markus Hahn
author_sort Selin Guergan
collection DOAJ
description Breast conserving resection with free margins is the gold standard treatment for early breast cancer recommended by guidelines worldwide. Therefore, reliable discrimination between normal and malignant tissue at the resection margins is essential. In this study, normal and abnormal tissue samples from breast cancer patients were characterized ex vivo by optical emission spectroscopy (OES) based on ionized atoms and molecules generated during electrosurgical treatment. The aim of the study was to determine spectroscopic features which are typical for healthy and neoplastic breast tissue allowing for future real-time tissue differentiation and margin assessment during breast cancer surgery. A total of 972 spectra generated by electrosurgical sparking on normal and abnormal tissue were used for support vector classifier (SVC) training. Specific spectroscopic features were selected for the classification of tissues in the included breast cancer patients. The average classification accuracy for all patients was 96.9%. Normal and abnormal breast tissue could be differentiated with a mean sensitivity of 94.8%, a specificity of 99.0%, a positive predictive value (PPV) of 99.1% and a negative predictive value (NPV) of 96.1%. For 66.6% patients all classifications reached 100%. Based on this convincing data, a future clinical application of OES-based tissue differentiation in breast cancer surgery seems to be feasible.
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spelling doaj.art-67d382e6de984874b27c584118bc74292024-02-09T15:10:17ZengMDPI AGDiagnostics2075-44182024-02-0114333810.3390/diagnostics14030338Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast TissueSelin Guergan0Bettina Boeer1Regina Fugunt2Gisela Helms3Carmen Roehm4Anna Solomianik5Alexander Neugebauer6Daniela Nuessle7Mirjam Schuermann8Kristin Brunecker9Ovidiu Jurjut10Karen A. Boehme11Sascha Dammeier12Markus D. Enderle13Sabrina Bettio14Irene Gonzalez-Menendez15Annette Staebler16Sara Y. Brucker17Bernhard Kraemer18Diethelm Wallwiener19Falko Fend20Markus Hahn21Department of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyErbe Elektromedizin GmbH, Waldhoernlestr. 17, 72072 Tübingen, GermanyInstitute of Pathology and Neuropathology, Tuebingen University Hospital, 72076 Tübingen, GermanyInstitute of Pathology and Neuropathology, Tuebingen University Hospital, 72076 Tübingen, GermanyInstitute of Pathology and Neuropathology, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyInstitute of Pathology and Neuropathology, Tuebingen University Hospital, 72076 Tübingen, GermanyDepartment of Women’s Health, Tuebingen University Hospital, 72076 Tübingen, GermanyBreast conserving resection with free margins is the gold standard treatment for early breast cancer recommended by guidelines worldwide. Therefore, reliable discrimination between normal and malignant tissue at the resection margins is essential. In this study, normal and abnormal tissue samples from breast cancer patients were characterized ex vivo by optical emission spectroscopy (OES) based on ionized atoms and molecules generated during electrosurgical treatment. The aim of the study was to determine spectroscopic features which are typical for healthy and neoplastic breast tissue allowing for future real-time tissue differentiation and margin assessment during breast cancer surgery. A total of 972 spectra generated by electrosurgical sparking on normal and abnormal tissue were used for support vector classifier (SVC) training. Specific spectroscopic features were selected for the classification of tissues in the included breast cancer patients. The average classification accuracy for all patients was 96.9%. Normal and abnormal breast tissue could be differentiated with a mean sensitivity of 94.8%, a specificity of 99.0%, a positive predictive value (PPV) of 99.1% and a negative predictive value (NPV) of 96.1%. For 66.6% patients all classifications reached 100%. Based on this convincing data, a future clinical application of OES-based tissue differentiation in breast cancer surgery seems to be feasible.https://www.mdpi.com/2075-4418/14/3/338optical emission spectroscopybreast cancertumor tissuetumor marginmachine learningsupport vector machine
spellingShingle Selin Guergan
Bettina Boeer
Regina Fugunt
Gisela Helms
Carmen Roehm
Anna Solomianik
Alexander Neugebauer
Daniela Nuessle
Mirjam Schuermann
Kristin Brunecker
Ovidiu Jurjut
Karen A. Boehme
Sascha Dammeier
Markus D. Enderle
Sabrina Bettio
Irene Gonzalez-Menendez
Annette Staebler
Sara Y. Brucker
Bernhard Kraemer
Diethelm Wallwiener
Falko Fend
Markus Hahn
Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
Diagnostics
optical emission spectroscopy
breast cancer
tumor tissue
tumor margin
machine learning
support vector machine
title Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
title_full Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
title_fullStr Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
title_full_unstemmed Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
title_short Optical Emission Spectroscopy for the Real-Time Identification of Malignant Breast Tissue
title_sort optical emission spectroscopy for the real time identification of malignant breast tissue
topic optical emission spectroscopy
breast cancer
tumor tissue
tumor margin
machine learning
support vector machine
url https://www.mdpi.com/2075-4418/14/3/338
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