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 cm**3/kg. Image contrast improvements of 8-16 over conventional fluoroscopy are common. Several canine and human imaging studies are described including visualization of myocardial infarctions 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.
Original language | English (US) |
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Pages (from-to) | 77-82 |
Number of pages | 6 |
Journal | Proceedings of the Society of Photo-Optical Instrumentation Engineers |
Volume | 167 |
State | Published - Jan 1 1978 |
Event | Unknown conference - Stanford Univ, Calif Duration: Sep 11 1978 → Sep 12 1978 |
ASJC Scopus subject areas
- Engineering(all)