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- W2070407859 abstract "Abstract In the field of minimal invasive medicine, endoscopic imaging is an essential feature of diagnostics and process controls. For minimal invasive procedures (in addition to normal visus) it often is important to record elements of the so-called functional imaging. Recent developments in the technology of capillary-fiber optics suitable for X-rays in the range of approximately 4–10 keV point to the possible realization of endoscopes applicable in X-ray fluorescence (XRF) analysis. A general problem is the determination of scattering and absorption processes with consideration to tissue optics, X-ray scattering and X-ray absorption in a diagnostic partial volume. Therefore comparative investigations were performed in order to answer these questions. Zinc-oxide nanoparticles configured as single particles and ZnO clusters provided the fluorescence source in cell layers. An artificial scattering material was employed, which closely approximated the tissue optical conditions and the X-ray optical application conditions in possible diagnostic situations. As a result, imaging of spatially resolved X-ray contrasts was better than adequate optical fluorescence imaging by approximately one magnitude. Hence, a very important precondition for realizing X-ray fluorescence endoscopy is fulfilled." @default.
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- W2070407859 date "2006-04-01" @default.
- W2070407859 modified "2023-09-30" @default.
- W2070407859 title "Optical fluorescence and X-ray fluorescence endoscopic imaging – Comparison and basic investigations" @default.
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- W2070407859 doi "https://doi.org/10.1016/j.mla.2005.12.003" @default.
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