Table-top phase-contrast imaging employing photon-counting detectors towards mammographic applications

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00308636" target="_blank" >RIV/68407700:21340/17:00308636 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21670/17:00308636
Result on the web
<a href="http://iopscience.iop.org/article/10.1088/1748-0221/12/02/C02032" target="_blank" >http://iopscience.iop.org/article/10.1088/1748-0221/12/02/C02032</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1748-0221/12/02/C02032" target="_blank" >10.1088/1748-0221/12/02/C02032</a>

Result language
angličtina
Original language name
Table-top phase-contrast imaging employing photon-counting detectors towards mammographic applications
Original language description
In mammography the difficult task to detect microcalcifications (~ 100 μm) and low contrast structures in the breast has been a topic of interest from its beginnings. The possibility to improve the image quality requires the effort to employ novel X-ray imaging techniques, such as phase-contrast, and high resolution detectors. Phase-contrast techniques are promising tools for medical diagnosis because they provide additional and complementary information to traditional absorption-based X-ray imaging methods. In this work a Hamamatsu microfocus X-ray source with tungsten anode and a photon counting detector (Timepix operated in Medipix mode) was used. A significant improvement in the detection of phase-effects using Medipix detector was observed in comparison to a standard flat-panel detector. An optimization of geometrical parameters reveals the dependency on the X-ray propagation path and the small angle deviation. The quantification of these effects was achieved taking into account the image noise, contrast, spatial resolution of the phase-enhancement, absorbed dose, and energy dependence.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20602 - Medical laboratory technology (including laboratory samples analysis; diagnostic technologies) (Biomaterials to be 2.9 [physical characteristics of living material as related to medical implants, devices, sensors])

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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