Method and apparatus for generating a non-cardiac angiograph on

Details Method and apparatus for generating a non-cardiac angiograph on Method and apparatus for generating a non-cardiac angiograph on

1990-10-15

1992-01-28

Howell, Janice A.

X-ray or gamma ray systems or devices

Electronic circuit

Exposure timer

378 62, 358111, H05G 164

Patent

active

050849123

ABSTRACT:
A cardiac angiography system is configured to generate a non-cardiac angiograph by generating a blanking signal for a TV camera according to a desired non-cardiac image rate and image accumulation interval, while triggering the X-ray source to generate X-ray pulses typical for a cardiac application. The X-ray pulses are triggered by a shutter signal which has a pulse repetition rate greater than that typically used for a non-cardiac application so as to cause a plurality of X-ray pulses during the accumulation interval of the TV camera. The resulting plurality of X-ray pulse images are accumulated at the TV camera to form a single image frame for the non-cardiac exam. After a specified accumulation time, the TV camera closes the frame, sending the resulting video signal to a computer system for conversion, processing and storage. Resulting image data is used to form a display on a CRT and/or a printout as a hard-copy photograph.

REFERENCES:
patent: 4382184 (1983-05-01), Wernikoff
patent: 4444196 (1984-04-01), Stein
Seibert, J. Anthony, et al., "Interlaced Versus Progressive Readout of Television Camera for Digital Radiographic Acquisitions", Medical Physics, vol. 11, No. 5, Sep./Oct. 1984.
GE Medical Systems, "ADVANTX: Your Access to the Future of Cardiovascular Imaging", 1987.
GE Product Data, "S5802/3 Advantx Angiovascular System", 11-187, pp. 1-8.

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