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RADIATION REDUCTION BY MEANS OF LOW PULSERATE FLUOROSCOPY DURING CARDIAC CATHETERIZATION AND CORONARY ARTERIOGRAPHY

J. H. GROLLMAN JR. M.D.

Dose reduction low pulse-rate fluoroscopy utilizing a magnetic video disc recorder integrated into an x-ray system has been employed successfully during the performance of cardiac catheterization and angiography for the past 2frac12 years.

A short x-ray pulse is recorded by the disc recorder and then played back immediately on the television viewing monitor. Subsequent pulses are recorded and played back automatically at a preset time interval resulting in a flicker-free, pseudocontinuous fluoroscopic image.

Pulse rates as low as 7frac12 frames per second have been used during coronary arteriography usually without difficulty, resulting in dose reduction over 5 times that which would have resulted during performances of these procedures with standard fluoroscopy.


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G. W. L. Boland, B. Murphy, R. Arellano, L. Niklason, and P. R. Mueller
Dose Reduction in Gastrointestinal and Genitourinary Fluoroscopy: Use of Grid-Controlled Pulsed Fluoroscopy
Am. J. Roentgenol., November 1, 2000; 175(5): 1453 - 1457.
[Abstract] [Full Text] [PDF]


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