低剂量对比剂联合生理盐水在头颈CTA中的应用价值

发布时间：2018-06-28 11:29

本文选题：头颈部CT血管成像 + 对比剂　；参考：《中国实用神经疾病杂志》2016年09期

【摘要】：目的探讨低剂量对比剂联合生理盐水在头颈CTA的应用价值。方法选择60例行头颈CT血管成像的患者,采用随机数字表法分为低剂量组和对照组,低剂量组采用50mL对比剂+20mL生理盐水,对照组采用70mL对比剂,应用双盲实验法进行研究,CT头颈血管成像结果由2名经验放射科医师分别独立进行评价。结果颈动脉、颅内动脉显示情况评分比较无明显差异(X~2=1.475、1.837,P0.05),静脉显示情况评分比较有显著差异(X~2=11.439,P0.01);低剂量组横断位图、VR图和MIP图均能清晰显示血管;2组患者的脑动脉分支评分、脑静脉评分和动静脉最大强化差比较无明显差异(t=0.384、-1.221和-1.228,P0.05);主动脉弓、右颈总动脉分叉和左颈总动脉分叉的CT值组间比较有显著差异(t=17.172、13.546和13.415,P0.01);右大脑中动脉、左大脑中动脉的CT值组间比较无显著差异(t=1.843和1.926,P0.05)。结论在CT头颈血管成像中,应用低剂量对比剂联合生理盐水可获得良好的CTA图像,可以为临床医师提供可靠的诊疗依据,具有很高的临床应用价值。
[Abstract]:Objective to study the application value of low dose contrast agent combined with normal saline in head and neck CTA. Methods 60 patients with head and neck CT angiography were randomly divided into low dose group and control group. The low dose group was treated with 50 mL contrast agent 20 mL of normal saline and the control group with 70 mL contrast agent. The results of CT head and neck angiography were evaluated by two experienced radiologists. Results there was no significant difference in the display of carotid artery and intracranial artery (P 0.05), but there was a significant difference in the displaying of the vein (XG 2C 11.439 P 0.01), and in the low dose group, both VVR and MIP could clearly show the branches of cerebral artery in the two groups, and there was no significant difference between the two groups (P > 0.05), and there was no significant difference between the two groups (P < 0.05), but there was a significant difference between the two groups (P < 0.05). There was no significant difference between the cerebral vein score and the maximum enhancement difference between the arteriovenous and arteriovenous arteries (t = 0.384) -1.221 and -1.228 (P0.05), but there were significant differences in CT values between the aortic arch, the right common carotid artery and the left common carotid artery (t _ (17.172) ~ 13.546 and 13.415P _ (0.01), the right middle cerebral artery, and the right middle cerebral artery. There was no significant difference in CT value of left middle cerebral artery between the two groups (tr 1.843 and 1.926 P 0.05). Conclusion in CT head and neck angiography, low dose contrast agent combined with normal saline can obtain good CTA images, which can provide reliable basis for clinical diagnosis and treatment, and have high clinical application value.
【作者单位】：河南开封市中心医院影像科;
【分类号】：R816.1

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