Method for correcting positional shift of gamma camera apparatus

Details Method for correcting positional shift of gamma camera apparatus Method for correcting positional shift of gamma camera apparatus

1991-02-22

1992-12-22

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036307, 250369, 25036304, G01T 1164

Patent

active

051736080

ABSTRACT:
In a gamma camera apparatus, positional shifts contained in an output coordinate matrix of a gamma-ray detector by a method comprising the steps of: positioning a reference RI (radio isotope) source at a first reference position the gamma-ray detector so as to obtain a first positional-information coordinate output from the gamma-ray detector; processing the first positional-information coordinate output indicative of a second reference position with respect to the matrix output derived from the detector so as to produce positional correction data; acquiring a third positional-information coordinate output from the detector while injecting a radio isotope into a biological body under medical examination; and, correcting the third positional-information coordinate output based upon the positional correction data.

REFERENCES:
patent: 4281382 (1981-07-01), Knoll et al.
patent: 4582995 (1986-04-01), Lim et al.

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