Apparatus for processing an X-ray image

Details Apparatus for processing an X-ray image Apparatus for processing an X-ray image

1988-12-30

1990-07-03

Church, Craig E.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

358111, H05G 164

Patent

active

049397605

ABSTRACT:
An apparatus for processing X-ray images includes a smoothing circuit consisting of a low-pass filter. When a pre-contrast image passes therethrough, the higher portion of the spatial frequency of the pre-contrast image is cut off. A contrast image consists of a vascular image added to the pre-contrast image. The subtration of the smoothed pre-contrast image from the contrast image is carried out in a subtraction circuit. An image outputted from the subtraction circuit consists solely of the vascular image and the marginal images of skeletons, etc. This image permits easy ascertainment of vascularity on the surfaces of skeletons, etc.

REFERENCES:
patent: 4193089 (1980-03-01), Brougham et al.
patent: 4463375 (1984-07-01), Macovski
patent: 4663773 (1987-05-01), Haendle et al.

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