Means for localizing target coordinates in a body relative to a

Details Means for localizing target coordinates in a body relative to a Means for localizing target coordinates in a body relative to a

1983-10-21

1986-10-21

Anderson, Bruce C.

X-ray or gamma ray systems or devices

Auxiliary data acquisition or recording

Distance or dimension marker

128303B, 378162, H05G 128

Patent

active

046189785

ABSTRACT:
A localizer system is described which enables determination of the coordinates of a target located inside the human body and visualized on a tomographic scan image for essentially any arbitrary scan plane through the body. It involves a means of fixing a frame in a known relationship to the body and placing the localizer system in a fixed position relative to the frame. There is an axial axis defined for the localizer, and there are both parallel and transverse (perpendicular) rod elements as well as diagonal rod elements on the localizer. These appear as spot images on the scan plane image and are sufficient in number and location to enable accurate calculation of a target image on the scan and determination of the target coordinates in space relative to the localizer. This applies to plane scan cuts which are substantially parallel or perpendicular to the localizer axis.

REFERENCES:
patent: 4319136 (1982-03-01), Jinkins
patent: 4341220 (1982-07-01), Perry
patent: 4400819 (1983-08-01), Bens et al.

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