Preliminary results for hyperspectral videoendoscopy diagnostics on the phantoms of normal and abnormal tissues: towards gastrointestinal diagnostics

Martin Hohmann; Alexandre Douplik; Janani Varadhachari; Aulia Nasution; Jonas Mudter; Markus Neurath; Michael Schmidt

doi:10.1117/12.889829

16 June 2011 Preliminary results for hyperspectral videoendoscopy diagnostics on the phantoms of normal and abnormal tissues: towards gastrointestinal diagnostics

Martin Hohmann, Alexandre Douplik, Janani Varadhachari, Aulia Nasution, Jonas Mudter, Markus Neurath, Michael Schmidt

Author Affiliations +

Proceedings Volume 8087, Clinical and Biomedical Spectroscopy and Imaging II; 80872N (2011) https://doi.org/10.1117/12.889829
Event: European Conferences on Biomedical Optics, 2011, Munich, Germany

Abstract

Cancer is the second most cause of death in the world after cardiovascular related disease. This paper presents the calibration and test results obtained by mean of a hyperspectral reflectance and flexible video endoscope setup. Its application field is intended to be gastrointestinal cancer detection. We fabricated hard tissue phantoms which mimic different types of tissue in terms of its reflection properties for evaluation. The reflectance properties of the phantoms are set by varying the concentration of ink or titanium oxide. The goal is to achieve a similar reflectance properties as in actual respective tissues in vivo. A modified endoscope was used to discriminate the normal and tumor tissue phantoms with reflectance measurements. This hyperspectral endoscope setup consists of a light source, a camera and a camera controller that are compatible for use with conventional video endoscopes and video monitors. This setup allows the operator to switch between conventional white light imaging mode (WLI) and hyperspectral imaging mode (HSI). A significant imaging contrast between normal and tumor tissue phantoms has been provided.

Citation Download Citation

Martin Hohmann, Alexandre Douplik, Janani Varadhachari, Aulia Nasution, Jonas Mudter, Markus Neurath, and Michael Schmidt "Preliminary results for hyperspectral videoendoscopy diagnostics on the phantoms of normal and abnormal tissues: towards gastrointestinal diagnostics", Proc. SPIE 8087, Clinical and Biomedical Spectroscopy and Imaging II, 80872N (16 June 2011); https://doi.org/10.1117/12.889829

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