320排脑血管CT双期扫描时相选择和临床应用

发布时间：2018-03-28 06:27

  本文选题：血管造影术　切入点：体层摄影术　出处：《中国医学计算机成像杂志》2015年05期

【摘要】：目的:探讨分析320排螺旋CT脑动静脉双期扫描时相的合理选择以及临床应用价值。方法:回顾性分析2014年10月至2015年1月于我院行全脑动态增强扫描的48例患者的影像资料,进行最大密度投影和容积显示后,经双盲法分别确定每一例脑动脉和静脉显示的最佳时间点,取48例患者最佳的动静脉显示时间点的算数平均值为最佳动静脉期延迟时相。将此时相应用于80例患者的脑血管检查中,采取双盲法对所得脑血管双期影像评分(0~5分),并以合格条件为评分分数≥2分来计算脑血管双期CT检查成功率。结果:最佳动静脉期时相为(20.55±2.38)s和(34.84±2.50)s。动脉期和静脉期检查成像成功率分别为97.5%和96.3%,一次检查合格率为93.8%。结论:320排CT脑血管双期扫描的动静脉期时相为(20.55±2.38)s和(34.84±2.50)s时,一次检查成功率高。可获得满意的纯动脉和静脉图像,为临床提供可靠全面的图像信息。
[Abstract]:Objective: to explore the reasonable choice of dual-phase cerebral arteriovenous scanning with 320 slice spiral CT and its clinical value. Methods: the imaging data of 48 patients who underwent dynamic enhanced brain scanning in our hospital from October 2014 to January 2015 were retrospectively analyzed. After maximum density projection and volume display, the optimal time points for displaying cerebral artery and vein in each case were determined by double blind method. The mean value of the best time point for arteriovenous display in 48 patients was taken as the optimal arteriovenous delay phase, which was applied to the cerebral vascular examination in 80 patients. The double blind method was used to evaluate the cerebral vascular biphase imaging score of 0 ~ 5 points, and to calculate the successful rate of cerebral vascular double phase CT examination by using the qualified condition as the score of 鈮，

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