Faustino Wahaia, Irmantas Kasalynas, Dalius Seliuta, Gediminas Molis, Andrzej Urbanowicz, Catia Carvalho Silva, Fatima Carneiro, Gintaras Valusis, Pedro Granja
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.
Normal and cancer affected samples of colon tissue have been measured using
transmission time-domain terahertz spectroscopy and continuous wave terahertz
imaging. We show that it is possible to distinguish between normal and cancerous
regions in the samples when they are fixed in formalin or embedded in paraffin. Plots of
the refractive index of normal and cancer affected tissues as well as 2-D transmission
THz images are shown. Experimental results will be presented and the conditions for
discrimination between normal and affected tissue will be discussed.
Based on experimental analyses of colon and rectal tissues by THz spectroscopy and THz
imaging, we show it is possible to distinguish between healthy and cancerous zones. Plots of
the absorption coefficient and the index of refraction of the healthy and cancer affected
tissues as well as 2-D transmission THz images will be presented. The experimental results will
be discussed and the conditions for the tissues discrimination will be established.
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