SPATIALLY MODULATED RADIOGRAPHIC ILLUMINATOR

Award Information
Agency:
Department of Health and Human Services
Amount:
$50,000.00
Program:
SBIR
Contract:
N/A
Solitcitation Year:
N/A
Solicitation Number:
N/A
Branch:
N/A
Award Year:
1991
Phase:
Phase I
Agency Tracking Number:
16785
Solicitation Topic Code:
N/A
Small Business Information
Ois Optical Imaging Sys Inc
1896 Barrett St, Troy, MI, 48084
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
N/A
Principal Investigator
 Adi Abileah
 (313) 362-2738
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP A SYSTEM FOR THEOPTIMIZED VIEWING OF MEDICAL X-RAY FILM. ILLUMINATORS CURRENTLY USED TO VIEW RADIOGRAPHS HAVE A FIXED-AREA, SPATIALLY UNIFORM LIGHT OUTPUT. THIS ALLOWS EXTRANEOUS LIGHT TO DEGRADE VISUAL PERFORMANCE AND LIMITS THE VIEWABLE FILM DENSITY RANGE TO THE DYNAMIC RANGE OF THE EYE AT A GIVEN ADAPTATION LEVEL. THE VIEWING SYSTEM WILL PROVIDE SPATIALLY MODULATED ILLUMINATION TO REDUCE THE RANGE OF LIGHT INTENSITIES TRANSMITTED THROUGH AND AROUND THE X-RAY IMAGE AND THUS LESSEN OPTICAL GLARE, IMPROVE PHOTORECEPTOR SENSITIVITY AND EXPAND VIEWABLE FILM LATITUDE WITHOUT COMPROMISING CONTRAST OR RESOLUTION. SPECIFICALLY, THIS APPROACH TO FILM VIEWING SHOULD REDUCE WHAT IS A SIGNIFICANT FALSE-NEGATIVE RATE IN DETECTING PULMONARY NODULES ON CHEST FILMS. TO ACHIEVE THESE GOALS, THE PROJECTWILL AIM TO DEVELOP 1) A LARGE-AREA, FLAT-PANEL SPATIAL LIGHT MODULATOR, 2) A VARIABLE LIGHT SOURCE WITH SUFFICIENT INTENSITY TO ENABLE PHOTOPIC VIEWING OF RADIOGRAPHS OVER A WIDE DENSITY RANGE, AND 3) A MECHANISM TO PROVIDE AUTOMATIC ILLUMINATION CONTROL. NO CURRENT TECHNOLOGICAL EMBODIMENT CAN PROVIDE LARGE-AREA SPATIAL MODULATION OF LIGHT AT SUFFICIENT INTENSITY FOR READING RADIOGRAPHS. THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP A SYSTEM FOR THEOPTIMIZED VIEWING OF MEDICAL X-RAY FILM. ILLUMINATORS CURRENTLY USED TO VIEW RADIOGRAPHS HAVE A FIXED-AREA, SPATIALLY UNIFORM LIGHT OUTPUT. THIS ALLOWS EXTRANEOUS LIGHT TO DEGRADE VISUAL PERFORMANCE AND LIMITS THE VIEWABLE FILM DENSITY RANGE TO THE DYNAMIC RANGE OF THE EYE AT A GIVEN ADAPTATION LEVEL. THE VIEWING SYSTEM WILL PROVIDE SPATIALLY MODULATED ILLUMINATION TO REDUCE THE RANGE OF LIGHT INTENSITIES TRANSMITTED THROUGH AND AROUND THE X-RAY IMAGE AND THUS LESSEN OPTICAL GLARE, IMPROVE PHOTORECEPTOR SENSITIVITY AND EXPAND VIEWABLE FILM LATITUDE WITHOUT COMPROMISING CONTRAST OR RESOLUTION. SPECIFICALLY, THIS APPROACH TO FILM VIEWING SHOULD REDUCE WHAT IS A SIGNIFICANT FALSE-NEGATIVE RATE IN DETECTING PULMONARY NODULES ON CHEST FILMS. TO ACHIEVE THESE GOALS, THE PROJECTWILL AIM TO DEVELOP 1) A LARGE-AREA, FLAT-PANEL SPATIAL LIGHT MODULATOR, 2) A VARIABLE LIGHT SOURCE WITH SUFFICIENT INTENSITY TO ENABLE PHOTOPIC VIEWING OF RADIOGRAPHS OVER A WIDE DENSITY RANGE, AND 3) A MECHANISM TO PROVIDE AUTOMATIC ILLUMINATION CONTROL. NO CURRENT TECHNOLOGICAL EMBODIMENT CAN PROVIDE LARGE-AREA SPATIAL MODULATION OF LIGHT AT SUFFICIENT INTENSITY FOR READING RADIOGRAPHS.

* information listed above is at the time of submission.

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