US5762607A
Expired / Lapsed
US
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Emission tomography system and method using direct reconstruction of scattered radiation
Assignee: Revvity Health Sciences Inc
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Filing: 1997-03-19
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Granted: 1998-06-09
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Expires: 2017-03-19
Abstract
Abstract A method for the direct reconstruction of an object from measurements of the quantum efficiency determined from both a diffusing wave and a reradiated diffusing wave effected by irradiating the object with a source of radiation. The quantum efficiency is related to the number density of the fluorescent source distribution defining the image to be reconstructed by an integral operator. The image of the object is directly reconstructed by executing a prescribed mathematical algorithm, as determined with reference to the integral operator, on the quantum efficiency.
Inventors
- 👤 John Carl Schotland
- 👤 Masaru Ishii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:29
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/0059; A61B5/0073
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
78 words
A method for generating an image of an object comprising the steps of irradiating the object with a diffusing wave, measuring an intensity of a re-radiated diffusing wave to determine a quantum efficiency in terms of said diffusing wave and said re-radiated wave, wherein said quantum efficiency is related to the image by an integral operator, and directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on said quantum efficiency.
Claim 2
Independent Claim
78 words
A method for generating an image of an object comprising the steps of irradiating the object with a diffusing wave, measuring an intensity of a re-radiated diffusing wave to determine a quantum efficiency in terms of said diffusing wave and said re-radiated wave, wherein said quantum efficiency is related to the image by an integral operator, and directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on said quantum efficiency.
Claim 3
Dependent Claim
22 words
The method as recited in claim 1 wherein said algorithm further relates the image to said quantum efficiency by another integral operator.
Claim 4
Independent Claim
81 words
A system for generating an image of an object comprising means for irradiating the object with a diffusing wave, means for measuring an intensity of a re-radiated diffusing wave to determine a quantum efficiency in terms of said diffusing wave and said re-radiated wave, wherein said quantum efficiency is related to the image by an integral operator, and means for directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on said quantum efficiency.
Claim 5
Independent Claim
81 words
A system for generating an image of an object comprising means for irradiating the object with a diffusing wave, means for measuring an intensity of a re-radiated diffusing wave to determine a quantum efficiency in terms of said diffusing wave and said re-radiated wave, wherein said quantum efficiency is related to the image by an integral operator, and means for directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on said quantum efficiency.
Claim 6
Dependent Claim
49 words
The system as recited in claim 3 wherein said algorithm further relates the image to said quantum efficiency by another integral operator, and wherein said means for directly reconstructing the image includes means for computing said algorithm with reference to both said integral operator and said another integral operator.
Claim 7
Independent Claim
68 words
A method for generating an image of an object comprising the steps of irradiating the object with a diffusing wave, measuring a re-radiated diffusing waves relating both said diffusing wave and said re-radiated wave to the image by an integral operator, and directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on both said diffusing wave and said re-radiated wave.
Claim 8
Independent Claim
68 words
A method for generating an image of an object comprising the steps of irradiating the object with a diffusing wave, measuring a re-radiated diffusing waves relating both said diffusing wave and said re-radiated wave to the image by an integral operator, and directly reconstructing the image by executing a prescribed mathematical algorithm, determined with reference to said integral operator, on both said diffusing wave and said re-radiated wave.
Claim 9
Dependent Claim
27 words
The method as recited in claim 5 wherein said algorithm further relates the image to both said diffusing wave and said re-radiated wave by another integral operator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2001-06-08 | 2001-12-08 | 2002-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-08 | 2005-12-08 | 2006-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-08 | 2009-12-08 | 2010-06-09 | $7700.00 | Window Closed / Lapsed |