Edwin Donnelly
Last active: 2/28/2014

Polychromatic phase-contrast computed tomography.

Donnelly EF, Price RR, Lewis KG, Pickens DR
Med Phys. 2007 34 (8): 3165-8

PMID: 17879778 · DOI:10.1118/1.2750967

Polychromatic phase-contrast radiography differs from traditional (absorption-only) radiography in that the method requires at least a partially coherent x-ray source and the resulting images contain information about the phase shifts of x-rays in addition to the traditional absorption information. In a typical embodiment, this effect results in a measurable enhancement in image contrast at the edges of objects. In this study, a phase-contrast imaging system was adapted to allow an object to be imaged at multiple projections, and these projections were used to generate phase-contrast computed tomography images. The images obtained with this technique show edge enhancements surrounding the objects within the image.

MeSH Terms (14)

Algorithms Equipment Design Humans Image Processing, Computer-Assisted Mineral Oil Models, Theoretical Phantoms, Imaging Polymethyl Methacrylate Radiographic Image Interpretation, Computer-Assisted Radiography Reproducibility of Results Time Factors Tomography, X-Ray Computed X-Rays

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