We report results of the computed tomography reconstruction of the index of refraction in a whole rabbit knee joint examined at the photon energy of 51 keV. Refraction based images make it possible to delineate the bone, cartilage, and soft tissues without adjusting the contrast window width and level. Density variations, which are related to tissue composition and are not visible in absorption X-ray images, are detected in the obtained refraction based images. We discuss why refraction-based images provide better detectability of low contrast features than absorption images.
Gasilov, S., Mittone, A., Horng, A., Geith, T., Bravin, A., Baumbach, T., et al. (2016). Hard X-ray index of refraction tomography of a whole rabbit knee joint: A feasibility study. PHYSICA MEDICA, 32(12), 1785-1789 [10.1016/j.ejmp.2016.10.001].
Hard X-ray index of refraction tomography of a whole rabbit knee joint: A feasibility study
Bravin AMembro del Collaboration Group
;
2016
Abstract
We report results of the computed tomography reconstruction of the index of refraction in a whole rabbit knee joint examined at the photon energy of 51 keV. Refraction based images make it possible to delineate the bone, cartilage, and soft tissues without adjusting the contrast window width and level. Density variations, which are related to tissue composition and are not visible in absorption X-ray images, are detected in the obtained refraction based images. We discuss why refraction-based images provide better detectability of low contrast features than absorption images.
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