19 June 1979 Real-Time Computerized Fluoroscopic Cardiac Imaging
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Abstract
A computerized fluoroscopy system employing several time and energy subtraction algorithms has permitted good visualization of the cardiovascular system using peripheral intravenous iodine injections of about 1 cm3/kg. Image contrast im-provements of 8-16 over conventional fluoroscopy are common. Several canine and human imaging studies are described including visualization of myocardial infarc-tions as regions of anomalous image grey shade. The system employs a standard image intensified fluoroscopy system and a specially constructed real-time image processor. Quasimonoenergetic x-ray beams formed by filtration deliver typical doses of 400 mR/sec in adult human cardiac exams.
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R. A. Kruger, C. A. Mistretta, T. L. Houk, S. J. Riederer, C. G. Shaw, D. L. Ergun, D. Carbone, w. Kubal, A. Crummy, w. Zwiebel, "Real-Time Computerized Fluoroscopic Cardiac Imaging", Proc. SPIE 0167, Noninvasive Cardiovascular Measurements, (19 June 1979); doi: 10.1117/12.956983; https://doi.org/10.1117/12.956983
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