skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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):
5,818,050
Application Number:
PAN: 8-838,493; TRN: 99:001157
Assignee:
Brookhaven Science Associates LLC, Upton, NY (United States) PTO; SCA: 550601; PA: EDB-99:003725; SN: 98002028028
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}
}