X-ray or gamma ray systems or devices – Beam control – Scanner
Patent
1998-11-06
2000-06-27
Porta, David P.
X-ray or gamma ray systems or devices
Beam control
Scanner
378 9812, 378 54, G01B 1502
Patent
active
060815825
ABSTRACT:
A scanning densitometer provides transverse scanning of the patient with a small angle fan beam to significantly reduce parallax and image overlap blurring. Additional reduction of artifacts in the region of combined scans is obtained by a varying overlap of the scans when they are merged determined by a best matching of an identified structure within the scan. The matching process which reveals an ideal overlap provides height data of the structure allowing correction of magnification for structures which change in height within the patient over the scan.
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Bisek Joseph P.
Ergun David L.
Mazess Richard B.
Washenko Robert A.
Lunar Corporation
Porta David P.
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