| 单词 | contrast agent |
| 释义 | > as lemmascontrast agent contrast agent n. a substance introduced into a part of the body to enhance the quality of a radiographic image by increasing the contrast of internal structures with respect to adjacent tissue; = contrast-medium n. at Compounds 2. ΚΠ 1924 Acta Radiol. 3 344 Poisonings of this kind have been seen to occur partly as the result of partaking of bismuth subnitrate per os, either for purely therapeutical purposes or as a contrast agent in roentgenography of the digestive tract. 1996 New Scientist 1 June 20/1 More reliable diagnoses may be made possible by injecting patients with a ‘contrast agent’ that sharpens the images. 2007 M. Hofer CT Teaching Man. (ed. 3) 20/2 To opacify the proximal parts of the GIT [= gastrointestinal tract]..the patient swallows the contrast agent in several small portions. < as lemmas |
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