Parallax corrected external alignment lights

Details Parallax corrected external alignment lights Parallax corrected external alignment lights

1981-10-23

1983-05-24

La Roche, Eugene

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

378206, A61B 600

Patent

active

043853978

ABSTRACT:
External alignment lights mounted on the gantry of a tomography system to project on a staged patient a pattern showing the anatomy to be scanned by the system when the patient is translated form the staged position to the scanning position within the cylindrical opening of the gantry. Parallax correction means senses the angulation of the gantry with respect to the axis of translation of the patient table and modifies the translation distance of the table used to bring the patient into the scanning position.

REFERENCES:
patent: 4167675 (1979-09-01), Stodberg
patent: 4337502 (1982-06-01), Lescrenier

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