Collimator-free photon tomography
- Yaphank, NY
- Westbury, NY
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.
- Research Organization:
- Associated Universities, Inc., Upton, NY (United States)
- DOE Contract Number:
- AC02-76CH00016
- Assignee:
- Brookhaven Science Associates LLC (Upton, NY)
- Patent Number(s):
- US 5818050
- Application Number:
- 08/838,493
- OSTI ID:
- 871883
- Country of Publication:
- United States
- Language:
- English
|
conference | October 1995 |
Newton-Kantorovich method for three-dimensional potential inverse scattering problem and stability of the hyperbolic Cauchy problem with time-dependent data
|
journal | August 1991 |
Reconstruction of two-dimensional permittivity distribution using the distorted Born iterative method
|
journal | June 1990 |
|
conference | May 1995 |
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