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Proceedings Paper

Preliminary results for hyperspectral videoendoscopy diagnostics on the phantoms of normal and abnormal tissues: towards gastrointestinal diagnostics
Author(s): Martin Hohmann; Alexandre Douplik; Janani Varadhachari; Aulia Nasution; Jonas Mudter; Markus Neurath; Michael Schmidt
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Paper 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.

Paper Details

Date Published: 16 June 2011
PDF: 6 pages
Proc. SPIE 8087, Clinical and Biomedical Spectroscopy and Imaging II, 80872N (16 June 2011); doi: 10.1117/12.889829
Show Author Affiliations
Martin Hohmann, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Alexandre Douplik, Erlangen Graduate School in Advanced Optical Technologies (Germany)
Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Janani Varadhachari, Erlangen Graduate School in Advanced Optical Technologies (Germany)
Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Aulia Nasution, Institut Teknologi Sepuluh Nopember (Indonesia)
Jonas Mudter, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Markus Neurath, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
Michael Schmidt, Erlangen Graduate School in Advanced Optical Technologies (Germany)
Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)


Published in SPIE Proceedings Vol. 8087:
Clinical and Biomedical Spectroscopy and Imaging II
Nirmala Ramanujam; Jürgen Popp, Editor(s)

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