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Hard X-ray index of refraction tomography of a whole rabbit knee joint: A feasibility study
- Source :
- Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 32(12)
- Publication Year :
- 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.
- Subjects :
- Materials science
Low contrast detectability
Knee Joint
media_common.quotation_subject
Biophysics
X-rays’ index of refraction
General Physics and Astronomy
FIS/07 - FISICA APPLICATA (A BENI CULTURALI, AMBIENTALI, BIOLOGIA E MEDICINA)
Photon energy
01 natural sciences
030218 nuclear medicine & medical imaging
010309 optics
03 medical and health sciences
0302 clinical medicine
Optics
Differential phase-contrast imaging
0103 physical sciences
Image Processing, Computer-Assisted
Contrast (vision)
Animals
Radiology, Nuclear Medicine and imaging
Absorption (electromagnetic radiation)
Computed tomography (CT)
media_common
business.industry
Phase-contrast imaging
General Medicine
Osteoarthritis, Knee
Refraction
Feasibility Studies
Tomography
Rabbits
business
Tomography, X-Ray Computed
Refractive index
Subjects
Details
- ISSN :
- 1724191X
- Volume :
- 32
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB)
- Accession number :
- edsair.doi.dedup.....f02d84746d49291ce5ef8fed7841d97b