Abstract
Changes in X-ray attenuation of rabbit V2 carcinoma, as determined by computed tomography (CT) scanning, were assessed following the intraarterial and intravenous administration of a water soluble contrast agent. After intraarterial contrast medium administration, a significant increase in CT attenuation values occurred in both blood and V2 carcinoma, and the attenuation values remained above control values for at least 120 min. A similar, although less pronounced, increase in VA attenuation values occurred following intravenous contrast medium administration. Comparison of V2 CT enhancement values after intraarterial and intravenous administration suggested that tumor enhancement was greater after intraarterial administration.
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