Scintillation camera and sensor for use therein

Details Scintillation camera and sensor for use therein Scintillation camera and sensor for use therein

1993-10-28

1997-04-29

Fields, Carolyn E.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036302, G01T 1166

Patent

active

056251912

ABSTRACT:
A scintillation camera having a detector with a surface and designed to form a tomographic image of a subject from radiation emitted from radio isotope administered to the subject and detected by the detector. The camera comprises a data acquiring device for acquiring data required to reconstruct a tomographic image of the subject, and a detector holder for holding the detector at a predetermined distance from the body surface of the subject while the data acquiring device is acquiring the data. The detector holder includes a sensor, which may for example be an ultrasonic sensor, a pressure sensor, a tension sensor or an optical sensor, located between the subject and the detection surface of the detector, a sensor control circuit for controlling the sensor and detecting ON/OFF state of the sensor, and a detector moving device for moving the detector toward and away from the subject in accordance with the ON/OFF state detected by the sensor control circuit.

REFERENCES:
patent: 4445035 (1984-04-01), Ueyama
patent: 4593189 (1986-06-01), Stoub
patent: 5072121 (1991-12-01), Jazbec
patent: 5319205 (1994-06-01), Kline et al.
patent: 5376796 (1994-12-01), Chan et al.
patent: 5486700 (1996-01-01), Silberklang et al.

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