Acoustically modulated x-ray phase contrast imaging.

Details

Serval ID
serval:BIB_FDE4005D14EC
Type
Article: article from journal or magazin.
Collection
Publications
Title
Acoustically modulated x-ray phase contrast imaging.
Journal
Physics in Medicine and Biology
Author(s)
Hamilton T.J., Bailat C.J., Rose-Petruck C., Diebold G.J.
ISSN
0031-9155
Publication state
Published
Issued date
2004
Peer-reviewed
Oui
Volume
49
Number
21
Pages
4985-4996
Language
english
Notes
Publication types: Comparative Study ; Evaluation Studies ; Journal Article
Abstract
We report the use of ultrasonic radiation pressure with phase contrast x-ray imaging to give an image proportional to the space derivative of a conventional phase contrast image in the direction of propagation of an ultrasonic beam. Intense ultrasound is used to exert forces on objects within a body giving displacements of the order of tens to hundreds of microns. Subtraction of images made with and without the ultrasound field gives an image that removes low spatial frequency features and highlights high frequency features. The method acts as an acoustic 'contrast agent' for phase contrast x-ray imaging, which in soft tissue acts to highlight small density changes.
Keywords
Acoustics, Algorithms, Animals, Chickens, Contrast Media, Feasibility Studies, Mammography/methods, Radiographic Image Enhancement/methods, Radiographic Image Interpretation, Computer-Assisted/methods, Radiography/methods, Reproducibility of Results, Sensitivity and Specificity, Subtraction Technique, Ultrasonography/methods, Ultrasonography, Mammary/methods, Vibration, X-Rays
Pubmed
Web of science
Create date
25/04/2008 17:53
Last modification date
20/08/2019 17:28
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