Analytical study of a three dimensional imaging system using both single and coincident pair photons [tomography]

Author

Liang, Zhengrong

Author_Institution

Duke Univ. Med. Center, Durham, NC, USA

fYear

1989

fDate

9-12 Apr 1989

Firstpage

1085

Abstract

An analytical study of a three-dimensional positron-emission imaging system using both coincident pair-photon and noncoincident single-photon events is presented. The utilization of the noncoincident single-photon events at 511 keV to supplement the coincident pair-photon measurements for three-dimensional image reconstruction is described. Detector efficiency and resolution of this imaging system are calculated. Computer simulation and calculation of sensitivity, signal-to-noise ratio, noise background, and contrast are carried out for a cylindrical water phantom. Comparisons of these four factors between this imaging system and the conventional positron-emission imaging system are given

Keywords

computerised picture processing; computerised tomography; noise; radioisotope scanning and imaging; sensitivity analysis; 511 keV; SNR; biomedical imaging; coincident pair photons; computerised tomography; contrast; cylindrical water phantom; detector efficiency; detector resolution; image reconstruction; noise background; noncoincident single-photon events; picture processing; positron-emission imaging system; sensitivity; three dimensional imaging system; Brain; Collimators; Detectors; Electromagnetic scattering; Image analysis; Image reconstruction; Positron emission tomography; Radioactive decay; Signal to noise ratio; Single photon emission computed tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Southeastcon '89. Proceedings. Energy and Information Technologies in the Southeast., IEEE

Conference_Location

Columbia, SC

Type

conf

DOI

10.1109/SECON.1989.132577

Filename

132577