X-ray examination apparatus incorporating image subtraction

Details X-ray examination apparatus incorporating image subtraction X-ray examination apparatus incorporating image subtraction

1984-12-24

1988-02-02

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

358111, 128654, H05G 164

Patent

active

047232617

ABSTRACT:
An X-ray examination apparatus incorporating digital image subtraction in which from a series of images to be formed of an object with and without contrast medium those images are selected for subtraction which result in ultimate images which combine a low motional unsharpness with adequate contrast. Images are also formed on at least one of the edges of the contrast bolus, so that in each position several contrast images can be formed with a single contrast bolus.

REFERENCES:
patent: 4448200 (1984-05-01), Brooks et al.
patent: 4477923 (1984-10-01), Baumann et al.
patent: 4514759 (1985-04-01), Amtmann
patent: 4543604 (1985-09-01), Grosse
patent: 4551800 (1985-11-01), Riederer et al.
patent: 4581635 (1986-04-01), Franke
patent: 4613983 (1986-09-01), Yedid et al.
patent: 4626908 (1986-12-01), Tani

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