PROBLEM TO BE SOLVED: To provide a contrast medium composition including a high-concentration contrast medium for use in an image radiographing method, to achieve excellent CT image contrast enhancement effect and to obtain highly clear images with excellent discrimination by using a higher concentration for iodine, which performs a contrast action, in comparison with a conventionally used concentration.;SOLUTION: In the contrast medium composition, iodine performing a contrast action is used at higher concentration than a conventionally used one. In particular, when used for hepatic CT, the contrast medium composition exhibits improved contrast enhancement effects in both the arterial phase and the portal vein phase in comparison with a contrast medium of conventional concentration, and consequently, images with excellent clearness and discrimination can be obtained.;COPYRIGHT: (C)2013,JPO&INPIT
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