造影剂之CT检测及临床意义

CT detection of contrast media and its clinical significance

对7种造影剂不同浓度之CT值进行了实验性CT检测。结果发现造影剂浓度与含碘量呈正相关;含碘量与CT值呈正相关。经数学处理后;得出每1ml水溶液含1mgI时的CT值为29～38HU.但不同厂家产品其CT值不同。作者建议CT检查时口服、脑室造影、体腔造影时使用小剂量,并对检测方法及临床意义进行了讨论。

An experimental CT detection was performed on CT values of different concentration of 7 con-trast media. A positive correlation was found between the concentration of the contrast media and theIodine contents,and between the Iodine contents and the CT values. The CT values were 29--38HU,when there was 1 mg Iodine in 1 ml aqueous solution. But the CT values were different in the productsby different factories. It is suggested that small doses be uesd in oral abministration,CT ventriculogra-phy and body cavitography. The methods of detection and its clinical significance are discussed in thispaper.