A NOVEL DETECTOR FOR DIGITAL MAMMOGRAPHY

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1R43CA081984-01A2
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
RADIATION MONITORING DEVICES INC
44 HUNT ST, WATERTOWN, MA, 02172
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 VIVEK NAGARKAR
 () -
Business Contact
Phone: (617) 926-1167
Email: GENTINE@RMDINC.COM
Research Institution
N/A
Abstract
DESCRIPTION (Provided by Applicant): Early detection of breast tumors is critical to the successful treatment of breast cancer. At present, x-ray mammography is the only imaging modality with a proven capability for detecting early-stage breast cancer and reducing mortality. To ensure early detection mammographic screening must be accomplished with a significantly improved image quality using the lowest possible radiation dose. Presently, the most efficient and cost-effective method to achieve this objective is screen-film mammography, which limits the display of low contrast structures, typical of mammary tumors and micro-calcifications. Detectors based on CCD or a-Si:H arrays promise to overcome these limitations. However, the use of conventional phosphors in these detectors limits their performance due to the compromise between x-ray stopping power and spatial resolution. To address these issues, we propose to develop an advanced digital detector based on pixilated micro-structured scintillator allowing high resolution, high contrast diagnostic imaging with enhanced sensitivity. The novel scintillator will allow imaging with lower dose than film-screen, will be ideal for new digital mammography systems, and will provide a wide dynamic range along with the capability of image enhancements. PROPOSED COMMERCIAL APPLICATION: In addition to the enormous clinical x-ray imaging market, the proposed development of novel pixelated scintillator would find widespread use in instrumentation whenever high-resolution x-ray imaging is used. A novel imaging system formed by coupling these sensors to digital detectors may be applied to macromolecular crystallography, non-destructive testing, x-ray astronomy, and basic physics experiments. Currently the x-ray imaging market is estimated to be in hundreds of millions of dollars, a significant fraction of which represents applications where the proposed technology may be directly adapted.

* information listed above is at the time of submission.

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