An innovative digital imaging set‐up allowing a low‐dose approach to phase contrast applications in the medical field
- 9 August 2001
- journal article
- Published by Wiley in Medical Physics
- Vol. 28 (8), 1610-1619
- https://doi.org/10.1118/1.1388219
Abstract
Recently, new imaging modalities based on the detection of weak phase perturbations effects, among which are phase contrast and diffraction imaging, have been developed by several researchers. Due to their high sensitivity to weakly absorbing details, these techniques seem to be very promising for applications in the medical field. On the other hand, digital radiology is undergoing a wide diffusion, and its benefits are presently very well understood. Up to now, however, the strong pixel size constraints associated with phase contrast pattern detection limited the possibility of exploiting the advantages of phase contrast in digital radiology applications, In this paper, an innovative setup capable of removing the pixel size constraints, and thus opening the way to low dose digital phase contrast imaging, is described. Furthermore, we introduce an imaging technique based on the detection of radiation scattered at small angles: the information extracted from the sample is increased at no dose expense. We believe that several radiological fields, mammography being the first important example, may benefit from the herein described innovative imaging techniquesKeywords
This publication has 23 references indexed in Scilit:
- An "edge-on" silicon strip detector for X-ray imagingIEEE Transactions on Nuclear Science, 1997
- Phase-contrast imaging using polychromatic hard X-raysNature, 1996
- Recent developments in breast imagingPhysics in Medicine & Biology, 1996
- Phase objects in synchrotron radiation hard x-ray imagingJournal of Physics D: Applied Physics, 1996
- On the possibilities of x-ray phase contrast microimaging by coherent high-energy synchrotron radiationReview of Scientific Instruments, 1995
- Phase-contrast imaging with synchrotron x-rays for detecting cancer lesionsAcademic Radiology, 1995
- Phase-contrast imaging of weakly absorbing materials using hard X-raysNature, 1995
- A new phantom for mammographyThe British Journal of Radiology, 1991
- X-ray characterisation of normal and neoplastic breast tissuesPhysics in Medicine & Biology, 1987