American Journal of Roentgenology, Vol 134, Issue 1, 159-192
Copyright © 1980 by American Roentgen Ray Society
Effect of radiographic magnification on image contrast of blood vessels
T Sandor
and
P Nott
Blood vessel phantoms 0.5--4 mm in diameter were radiographed with a 0.1 mm x-ray tube with and without scattering medium. The contrast of the blood vessel images was determined by densitometry. Without scattering medium, magnification did not increase the image contrast for 1 mm or larger vessels. With scattering medium, contrast improved significantly due to the reduction of scattered radiation by the air gap between object and film.