Monochromatic beam mammography studies using synchrotron radiation
- National Synchrotron Light Source, Brookhaven National Laboratory, Building 725D, Upton, NY 11973-5000 (United States)
- University of North Carolina, Chapel Hill, NC 27599 (United States)
- National Synchrotron Light Source, Upton, NY 11973-5000 and INFN di Trieste and Universita di Trieste, Trieste (Italy)
- National Synchrotron Light Source, Upton, NY 11973-5000 (United States)
- North Carolina State University, Raleigh, NC 27695 (United States)
Preliminary experiments have been carried out on the X27C R&D beamline at the National Synchrotron Light Source (NSLS) to explore the potential improvement in contrast in breast imaging using monochromatic synchrotron x-rays [R. E. Johnson {ital et} {ital al}., SPIE (1995) (to be published)]. In our present study, images have been obtained of ACR, contrast detail and anthropomorphic phantoms at 16 to 24 keV. Phantom thickness varied from 42 to 80 mm. Synchrotron images using a Fuji image plate detector and standard mammographic film have been compared to each other and with conventionally produced images. The preliminary results show an improved contrast over the conventional images with lower absorbed dose in the phantoms. The image plate detector was used for our fist experiments because it was readily available and produces digital data. Experiments using an additional analyzer crystal as a scatter rejection element are also underway at the NSLS [D. Chapman, SRI {open_quote}95 (these proceedings)]. We plan to evaluate a variety of detectors and monochromatic beam geometries in order to develop a system that optimizes mammography image contrast and spatial resolution. {copyright} {ital 1996 American Institute of Physics.}
- OSTI ID:
- 389558
- Report Number(s):
- CONF-9510119--
- Journal Information:
- Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 9 Vol. 67; ISSN 0034-6748; ISSN RSINAK
- Country of Publication:
- United States
- Language:
- English
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