个体化大剂量高速率生理盐水在头颈部CTA降低入路静脉伪影的可行性研究  

Feasibility Study of Individualized High dose and High-rate Normal Saline in Head and Neck CTA to Reduce the Venous Artifacts of the Approach

作　　者：傅贤方 胡海菁 徐里纯 黎永锋[3] 靳仓正 FU Xian-fang;HU Hai-jing;XU Li-chun;LI Yong-feng;JIN Cang-zheng(Department of Radiology,The Sixth Affiliated Hospital,South China University of Technology,Foshan 528222,Guangdong Province,China;Outpatient Department,The Sixth Affiliated Hospital,South China University of Technology,Foshan 528222,Guangdong Province,China;Department of Information,Jiangmen Central Hospital,Jiangmen 529030,Guangdong Province,China)

机构地区：[1]华南理工大学附属第六医院放射科,广东佛山528222 [2]华南理工大学附属第六医院门诊部,广东佛山528222 [3]广东省江门市中心医院信息科,广东江门529030

出　　处：《中国CT和MRI杂志》2022年第12期47-49,共3页Chinese Journal of CT and MRI

基　　金：佛山市卫生健康局医学科研课题(20200388);佛山市“十三五”医学特色专科建设项目(FSTSZK011)。

摘　　要：目的探讨个体化大剂量高速率生理盐水在头颈部CTA降低入路静脉伪影的可行性研究。方法选取2021年3月至2021年8月我院头颈部CTA检查80例,前瞻性分成两组,每组40例。两组受检者均以0.06倍体重kg值作对比剂速率,实验组采用1.4倍对比剂速率作高速率生理盐水;对照组生理盐水与对比剂等速率,对比剂与生理盐水分别注射9秒和14秒。记录各受检者生理盐水速率及总量;比较入路静脉伪影采用主观评分;测量主动脉弓、头臂干、颈总动脉、锁骨下动脉、大脑基底动脉、上腔静脉、头臂静脉、锁骨下静脉CT值,比较评分及CT值差异。结果实验组生理盐水速率3.6~6.7mL/s(平均5.4±0.7 m L/s),总量50.4~93.8 m L(平均74.7±9.5mL);对照组速率2.4~4.8mL/s(平均3.6±0.7mL/s),总量33.6~67.2mL(平均49.8±9.9mL),两组速率及总量差异具有统计学意义(P<0.01)。主观评分实验组1分25例,2分15例;对照组1分7例,2分22例,3分11例,评分差异具有统计学意义(P<0.01)。实验组各目标动脉CT值高于对照组,实验组上腔静脉、头臂静脉、锁骨下静脉CT值低于对照组,各目标血管CT值差异具有统计学意义(P<0.01)。结论采用1.4倍对比剂速率的个体化大剂量高速率生理盐水在头颈CTA检查可明显降低入路静脉伪影,提高动脉血管CT值。Objective To investigate the feasibility of individualized high dose and high rate normal saline in head and neck CTA to reduce the venous artifacts.Methods From March 2021 to August 2021,80 cases of head and neck CTA examination in our hospital were prospectively divided into two groups,40 cases in each group.In both groups,0.06 times of body weight kg value was used as contrast agent rate,while in the experimental group,1.4 times of contrast agent rate was used as high rate normal saline.The control group was injected with normal saline and contrast agent at the same rate for 9 seconds and 14 seconds,respectively.The rate and total amount of normal saline were recorded.Subjective score was used to compare the approach venous artifacts.The CT values of aortic arch,brachiocephalic trunk,common carotid artery,subclavian artery,basilar cerebral artery,superior vena cava,brachiocephalic vein and subclavian vein were measured,and the scores and CT values were compared.Results The rate of normal saline in the experimental group was 3.6~6.7 mL/s(average 5.4±0.7 mL/s),and the total amount was 50.4~93.8 ml(average 74.7±9.5 mL).In the control group,the rates were 2.4~4.8 ml/s(average 3.6±0.7 mL/s),and the total amount was 33.6~67.2 mL(average 49.8±9.9 ml).The differences in the rates and total amount between the two groups were statistically significant(P<0.01).Subjective score:1 point 25 cases,2 points 15 cases;In the control group,7 patients scored 1,22 patients scored 2 and 11 patients scored 3,with statistically significant differences(P<0.01).The CT values of each target artery in the experimental group were higher than those in the control group,while the CT values of superior vena cava,brachiocephalic vein and subclavian vein in the experimental group were lower than those in the control group,and the differences in CT values of each target vessel were statistically significant(P<0.01).Conclusion The use of personalized high-dose and high-rate normal saline with 1.4 times the rate of contrast agent in head and

关 键 词：生理盐水 个体化 高速率 伪影 血管造影术 

分 类 号：R814.43[医药卫生—影像医学与核医学]