Collimator-free photon tomography
Abstract
A method of uncollimated single photon emission computed tomography includes administering a radioisotope to a patient for producing gamma ray photons from a source inside the patient. Emissivity of the photons is measured externally of the patient with an uncollimated gamma camera at a plurality of measurement positions surrounding the patient for obtaining corresponding energy spectrums thereat. Photon emissivity at the plurality of measurement positions is predicted using an initial prediction of an image of the source. The predicted and measured photon emissivities are compared to obtain differences therebetween. Prediction and comparison is iterated by updating the image prediction until the differences are below a threshold for obtaining a final prediction of the source image. 6 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Associated Universities Inc
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 675834
- Patent Number(s):
- 5818050
- Application Number:
- PAN: 8-838,493; TRN: 99:001157
- Assignee:
- Brookhaven Science Associates LLC, Upton, NY (United States)
- DOE Contract Number:
- AC02-76CH00016
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 6 Oct 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 55 BIOLOGY AND MEDICINE, BASIC STUDIES; SINGLE PHOTON EMISSION COMPUTED TOMOGRAPHY; IMAGE PROCESSING; PHOTONS; RADIOPHARMACEUTICALS
Citation Formats
Dilmanian, F A, and Barbour, R L. Collimator-free photon tomography. United States: N. p., 1998.
Web.
Dilmanian, F A, & Barbour, R L. Collimator-free photon tomography. United States.
Dilmanian, F A, and Barbour, R L. Tue .
"Collimator-free photon tomography". United States.
@article{osti_675834,
title = {Collimator-free photon tomography},
author = {Dilmanian, F A and Barbour, R L},
abstractNote = {A method of uncollimated single photon emission computed tomography includes administering a radioisotope to a patient for producing gamma ray photons from a source inside the patient. Emissivity of the photons is measured externally of the patient with an uncollimated gamma camera at a plurality of measurement positions surrounding the patient for obtaining corresponding energy spectrums thereat. Photon emissivity at the plurality of measurement positions is predicted using an initial prediction of an image of the source. The predicted and measured photon emissivities are compared to obtain differences therebetween. Prediction and comparison is iterated by updating the image prediction until the differences are below a threshold for obtaining a final prediction of the source image. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {10}
}