Reduction of motion unsharpness in coronary angiography using rare-earth oxysulfide intensifying screens and green-sensitive X-ray film.
During cardiac cycle the coronary arteries move rapidly; the maximum velocity can exceed 400 mm/s. To eliminate the motion unsharpness, exposure times under ten milliseconds are necessary. Using new rare-earth oxysulfide intensifying screens and fast green sensitive X-ray film the exposure times can be reduced to as little as 2 milliseconds. Thus the motion unsharpness can be almost completely eliminated, producing enhanced resolution and better diagnostic accuracy.
D000790:Angiocardiography / Q000295:instrumentation* / Q000379:methods; D006801:Humans; D008674:Metals, Rare Earth; D010087:Oxides; D013440:Sulfides; D013997:Time Factors
D008674:Metals, Rare Earth; D010087:Oxides; D013440:Sulfides