Combining fibre optic Raman spectroscopy and tactile resonance measurement for tissue characterization
Identifieur interne : 003935 ( Main/Exploration ); précédent : 003934; suivant : 003936Combining fibre optic Raman spectroscopy and tactile resonance measurement for tissue characterization
Auteurs : Stefan Candefjord [Suède] ; Morgan Nyberg [Suède] ; Ville Jalkanen [Suède] ; Kerstin Ramser [Suède] ; Olof A. Lindahl [Suède]Source :
- Measurement Science and Technology [ 0957-0233 ] ; 2010.
Abstract
Tissue characterization is fundamental for identification of pathological conditions. Raman spectroscopy (RS) and tactile resonance measurement (TRM) are two promising techniques that measure biochemical content and stiffness, respectively. They have potential to complement the golden standard-histological analysis. By combining RS and TRM, complementary information about tissue content can be obtained and specific drawbacks can be avoided. The aim of this study was to develop a multivariate approach to compare RS and TRM information. The approach was evaluated on measurements at the same points on porcine abdominal tissue. The measurement points were divided into five groups by multivariate analysis of the RS data. A regression analysis was performed and receiver operating characteristic (ROC) curves were used to compare the RS and TRM data. TRM identified one group efficiently (area under ROC curve 0.99). The RS data showed that the proportion of saturated fat was high in this group. The regression analysis showed that stiffness was mainly determined by the amount of fat and its composition. We concluded that RS provided additional, important information for tissue identification that was not provided by TRM alone. The results are promising for development of a method combining RS and TRM for intraoperative tissue characterization.
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DOI: 10.1088/0957-0233/21/12/125801
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Raman spectroscopy (RS) and tactile resonance measurement (TRM) are two promising techniques that measure biochemical content and stiffness, respectively. They have potential to complement the golden standard-histological analysis. By combining RS and TRM, complementary information about tissue content can be obtained and specific drawbacks can be avoided. The aim of this study was to develop a multivariate approach to compare RS and TRM information. The approach was evaluated on measurements at the same points on porcine abdominal tissue. The measurement points were divided into five groups by multivariate analysis of the RS data. A regression analysis was performed and receiver operating characteristic (ROC) curves were used to compare the RS and TRM data. TRM identified one group efficiently (area under ROC curve 0.99). The RS data showed that the proportion of saturated fat was high in this group. The regression analysis showed that stiffness was mainly determined by the amount of fat and its composition. We concluded that RS provided additional, important information for tissue identification that was not provided by TRM alone. The results are promising for development of a method combining RS and TRM for intraoperative tissue characterization.</div></front></TEI><affiliations><list><country><li>Suède</li></country></list><tree><country name="Suède"><noRegion><name sortKey="Candefjord, Stefan" sort="Candefjord, Stefan" uniqKey="Candefjord S" first="Stefan" last="Candefjord">Stefan Candefjord</name></noRegion><name sortKey="Candefjord, Stefan" sort="Candefjord, Stefan" uniqKey="Candefjord S" first="Stefan" last="Candefjord">Stefan Candefjord</name><name sortKey="Candefjord, Stefan" sort="Candefjord, Stefan" uniqKey="Candefjord S" first="Stefan" last="Candefjord">Stefan Candefjord</name><name sortKey="Jalkanen, Ville" sort="Jalkanen, Ville" uniqKey="Jalkanen V" first="Ville" last="Jalkanen">Ville Jalkanen</name><name sortKey="Jalkanen, Ville" sort="Jalkanen, Ville" uniqKey="Jalkanen V" first="Ville" last="Jalkanen">Ville Jalkanen</name><name sortKey="Lindahl, Olof A" sort="Lindahl, Olof A" uniqKey="Lindahl O" first="Olof A" last="Lindahl">Olof A. Lindahl</name><name sortKey="Lindahl, Olof A" sort="Lindahl, Olof A" uniqKey="Lindahl O" first="Olof A" last="Lindahl">Olof A. Lindahl</name><name sortKey="Nyberg, Morgan" sort="Nyberg, Morgan" uniqKey="Nyberg M" first="Morgan" last="Nyberg">Morgan Nyberg</name><name sortKey="Nyberg, Morgan" sort="Nyberg, Morgan" uniqKey="Nyberg M" first="Morgan" last="Nyberg">Morgan Nyberg</name><name sortKey="Ramser, Kerstin" sort="Ramser, Kerstin" uniqKey="Ramser K" first="Kerstin" last="Ramser">Kerstin Ramser</name><name sortKey="Ramser, Kerstin" sort="Ramser, Kerstin" uniqKey="Ramser K" first="Kerstin" last="Ramser">Kerstin Ramser</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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