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CCD DETECTOR DEVELOPMENT FOR DIGITAL X-RAY MAMMOGRAPHY

Award Information

Agency:
Department of Health and Human Services
Branch:
N/A
Award ID:
7134
Program Year/Program:
1987 / SBIR
Agency Tracking Number:
7134
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
FISCHER IMAGING CORPORATION
FISCHER IMAGING CORPORATION 12300 N GRANT ST DENVER, CO 80241
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1987
Title: CCD DETECTOR DEVELOPMENT FOR DIGITAL X-RAY MAMMOGRAPHY
Agency: HHS
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

A HIGH-RESOLUTION SCANNED-PROJECTION RADIOGRAPHY SYSTEM IS PROPOSED FOR DIGITAL MAMMOGRAPHIC APPLICATIONS. BY USING A WIDE, DYNAMIC-RANGE CCD DETECTOR, SOME OF THE CURRENT LIMITATIONS ENCOUNTERED IN CONVENTIONAL FILM-SCREEN MAMMOGRAPHY CAN BE AVOIDED. ONE-DIMENSIONAL, FANBEAM GEOMETRY PROVIDES VERY GOOD SCATTERED X-RAY REDUCTION. A TIME-DELAY-AND-INTEGRATE (TDI) MODE OF CCD IMAGING WITH A 2,048X96 ELEMENT CCD ARRAY PROVIDES THE OPPORTUNITY TO IMAGEWITHOUT THE EXCESSIVE POWER-LOADING OF X-RAY TUBES THAT WOULD BE REQUIRED WITH A 2,048X1 ARRAY. BY UTILIZING TDI CHARGE INTEGRATION WHILE THE DETECTOR IS SCANNED, EACH PROJECTION THROUGH STATIONARY ANATOMY IS AVERAGED OVER 96 EXPOSURES, THEREBY PROVIDING A SIGNIFICANT SIGNAL-TO-QUANTUMMOTTLE IMPROVEMENT OF APPROXIMATELY 10:1 WHEN COMPARED TO A 2,048X1 DETECTOR AT THE EQUIVALENT TUBE LOADING. DEVELOPMENTAL TASKS TO BE PERFORMED INCLUDE CONSTRUCTION OF A TDI-CCD X-RAY DETECTOR IN WHICH THE LIGHT OUTPUT OF AN X-RAY-INTENSIFYING SCREEN IS COUPLED BY MEANS OF A LENS TO THE CCD FOCAL PLANE, MEASUREMENT OF X-RAY SENSITIVITY, ASSESSMENT OF NOISE CHARACTERISTICS AND HOMOGENEITY OF THE X-RAY DETECTOR CONSTRUCTION OF A MOVING-SAMPLE X-RAY IMAGING SYSTEM BASED ON THE TDI DETECTOR, AND DETERMINATION OF THE OPTIMUM X-RAY SPECTRUM FOR DIGITAL MAMMOGRAPHIC IMAGING TASKS TO EVALUATE ITS CLINICAL POTENTIAL.

Principal Investigator:

David e gustafson phd
3034526800

Business Contact:

Small Business Information at Submission:

Fischer Imaging Corpon
12300 North Grant Street Denver, CO 80241

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No