THORIUM—A NEW AGENT FOR PYELOGRAPHY

Open Access
Publisher Website
Google Scholar
Abstract
BALTIMORE In order that a solution may be ideally suited for use in pyelography, it must fulfil the following conditions: It should be nontoxic, nonirritating, and quite fluid, so as immediately to escape from ureters and bladder, and present the greatest possible degree of opacity to the Roentgen ray, casting not only a good shadow but also one of clear delineation. Various colloidal solutions of salts of the heavy metals such as iron, silver, bismuth, copper and lead, and suspensions of the salts of bismuth, calcium and magnesium have been tried. All of these solutions sediment on standing, and while being, for the most part, quite opaque to the Roentgen ray, are viscous, and some are quite toxic and irritating. Thorium nitrate dissolves readily in water, giving a clear, markedly acid solution, which, while being opaque to the Roentgen ray, is unsuitable for use because of its being an irritant,

This publication has 0 references indexed in Scilit: