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Radiology, Vol 151, 517-520, Copyright © 1984 by Radiological Society of North America

ARTICLES

Real-time digital angiocardiography using a temporal high-pass filter

CW Hardin, RA Kruger, FL Anderson, BE Bray and JA Nelson

A temporal high-pass filtration technique for digital subtraction angiocardiography was studied, using real-time digital studies performed simultaneously with routine cineangiocardiography (cine) for qualitative image comparison. The digital studies showed increased contrast and suppression of background anatomy and also enhanced detection of wall motion abnormalities when compared with cine. This digital technique is compatible with panning the image intensifier during an injection. The digital images are comparable with, and in some cases better than, cine images. Clinical efficacy of this digital technique is currently being evaluated. Real-time display, as well as potential reductions in radiation and contrast material doses, may make digital angiocardiography an attractive technique.




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