Ring type single-photon emission CT imaging apparatus

Details Ring type single-photon emission CT imaging apparatus Ring type single-photon emission CT imaging apparatus

1985-05-09

1987-01-27

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

250369, 250370, G01T 1164

Patent

active

046395997

ABSTRACT:
In a single-photon emission computerized tomography imaging apparatus, an inner ring member and an outer ring member are concentrically arranged with respect to an object under examination to which radioisotope has been administered. A plurality of detector elements such as the germanium semiconductor are mounted on the inner ring member. A plurality of detector elements such as the sodium iodide scintillator and the photomultiplier are mounted on the second ring member. First and second analyzers having a plurality of single channel analyzers are connected to receive first and second detector signals from the inner and outer detector elements. The first and second analyzers analyze data on the positional information of the inner and outer detector elements and data on the energy information of the gamma ray photon incident upon the inner and outer detector elements. Based upon two sets of data, an image reconstruction unit reconstructs a tomographic image of the object under examination.

REFERENCES:
patent: 4389569 (1983-06-01), Hattori et al.
patent: 4511799 (1985-04-01), Bjorkholm

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