Multiple-energy x-ray substraction imaging system

X-ray or gamma ray systems or devices – Electronic circuit – Exposure timer

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358111, G03B 4116

Patent

active

046113410

ABSTRACT:
Projection measurements are made at different parts of the x-ray energy spectrum. These measurements are processed to obtain image data with the soft tissue component eliminated. The processed image data is obtained before and after the administration of a contrast agent. The two sets of processed image data are combined to obtain an isolated image of the contrast agent which is immune to motion of soft tissue. The invention described herein was made in the course of work under a grant from the Department of Health, Education, and Welfare.

REFERENCES:
patent: 3974386 (1976-08-01), Mistretta
patent: 4029963 (1977-06-01), Alvarez

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