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Proceedings Paper

Study of gastric cancer samples using terahertz techniques
Author(s): Faustino Wahaia; Irmantas Kasalynas; Dalius Seliuta; Gediminas Molis; Andrzej Urbanowicz; Catia D. Carvalho Silva; Fatima Carneiro; Gintaras Valusis; Pedro L. Granja
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Paper Abstract

In the present work, samples of healthy and adenocarcinoma-affected human gastric tissue were analyzed using transmission time-domain THz spectroscopy (THz-TDS) and spectroscopic THz imaging at 201 and 590 GHz. The work shows that it is possible to distinguish between normal and cancerous regions in dried and paraffin-embedded samples. Plots of absorption coefficient α and refractive index n of normal and cancer affected tissues, as well as 2-D transmission THz images are presented and the conditions for discrimination between normal and affected tissues are discussed.

Paper Details

Date Published: 22 August 2014
PDF: 15 pages
Proc. SPIE 9286, Second International Conference on Applications of Optics and Photonics, 92864H (22 August 2014); doi: 10.1117/12.2063463
Show Author Affiliations
Faustino Wahaia, Univ. do Porto (Portugal)
Irmantas Kasalynas, Ctr. for Physical Sciences and Technology (Lithuania)
Dalius Seliuta, Ctr. for Physical Sciences and Technology (Lithuania)
Gediminas Molis, TERAVIL Ltd. (Lithuania)
Andrzej Urbanowicz, TERAVIL Ltd. (Lithuania)
Ctr. for Physical Sciences and Technology (Lithuania)
Catia D. Carvalho Silva, Univ. do Porto (Portugal)
Fatima Carneiro, Univ. do Porto (Portugal)
Ctr. Hospitalar São João (Portugal)
Gintaras Valusis, Ctr. for Physical Sciences and Technology (Lithuania)
Pedro L. Granja, Univ. do Porto (Portugal)


Published in SPIE Proceedings Vol. 9286:
Second International Conference on Applications of Optics and Photonics
Manuel Filipe P. C. Martins Costa; Rogério Nunes Nogueira, Editor(s)

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