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100kVp条件下头颈CTA检查中碘克沙醇(270mgI/mL)个性化注射方案的成像效果初探
其他题名StudyofimagequalityofheadandneckCTangiographywith 100kVptechnique:individualizationprotocolofIodixanol (270mgI/mL)administration
刘建新; 姜健; 王霄英; 曹新鸣; 盛程程; 李美娇; 张来运; 赵永为
关键词颈动脉 头颈部 血管成像 体层摄影术 对比剂 X线计算机 Carotid Artery Head And Neck Angiography Tomography Contrast Medium X-ray Computed
刊名放射学实践
2014
4页:369-372
收录类别中国科技核心期刊
文章类型Journal Article
摘要目的:探讨100 kVp 条件下、头颈部 CTA 检查中碘克沙醇(270 mg I/mL)个性化注射方案的成像效果。方法:连续50例患者行头颈部CTA 检查。使用对比剂碘克沙醇(270 mg I/mL ),个性化对比剂注射方案如下:注射总量=体重(kg)×0.5 mL/kg;根据注射时间的不同(分别为7、8和9 s)将患者分为3组(依次为A、B、C组);注射流率=注意总量/注射时间,规定最高流率为6 mL/s;采用对比剂智能跟踪触发技术,兴趣区置于主动脉弓处,阈值为80 HU。由两位阅片者对3组的重组图像进行主观评估(5分法),并测量颈部及脑内动脉的CT值。结果:三组患者的年龄、性别、身体质量指数(BMI)的差异无统计学意义(P>0.05)。三组图像的主观评分分别为4.75±0.41、4.85±0.34和4.29±0.61, A组与B组主观评分的差异无统计学意义(P>0.05),A 组、B 组与 C 组间主观评分的差异有统计学差异(P=0.004、0.024)。三组图像上颈动脉及脑内动脉的CT值:A组与B组间CT值的差异无统计学意义(P>0.05),A组、B组与C组间CT值的差异有统计学差异(P=0.001~0.037)。结论:碘克沙醇(270 mg I/mL)在头颈CTA 检查中可进行个性化注射,图像质量可满足诊断需求。 Objective:To evaluate the feasibility of head and neck CTA with 100kVp technique and individualization protocol of Iodixanol (270 mg I/mL)administration.Methods:50 patients underwent head and neck CTA using Iodixanol (270mg I/mL)as contrast medium.The individual contrast medium protocol were as follows:total volume of contrast medium administrated= weight(kg)×0.5mL/kg.According to different time period of injection,which were 7s,8s and 9s, these patients were divided into 3 groups (Group A,Group B,Group C respectively);the injection rate= volume/injection time,with the highest rate as 6mL/s.Using smart tracing trigger technique for contrast injection,the region of interest (ROI)was placed at aortic arch,the threshold was set as 80HU.The reformatted images were subjectively evaluated by 2 radiologists with 5 scale method,and the CT values of carotid artery and intra-cerebral artery were measured.Results:There were no significant statistic differences in gender,age and BMI among the 3 groups (P>0.05).The image quality scores of Group A,Group B and Group C was 4.75±0.41、4.85±0.34 and 4.29±0.61 respectively,no statistic difference was existed between Group A and Group B (P>0.05),significant statistic difference was existed between Group A,Group B and Group C (P= 0.004 and 0.024 respectively).Of the CT values of carotid arteries and intra-cerebral arteries of the 3 groups,no statistic difference was showed between Group A and Group B (P>0.05),yet there were significant differences between Group A,Group B and Group C (P= 0.001 and 0.037 respectively).Conclusion:Individualization of injection pro-tocol is feasible in head and neck CTA with iodixanol (270mg I/mL).The image quality can meet the requirement of diagnosis.
语种中文
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文献类型期刊论文
条目标识符http://ir.bjmu.edu.cn/handle/400002259/42685
专题北京大学第一临床医学院_医学影像科
北京大学第三临床医学院_放射科
作者单位北京大学第一医院医学影像科, 北京,100034
推荐引用方式
GB/T 7714
刘建新,姜健,王霄英,等. 100kVp条件下头颈CTA检查中碘克沙醇(270mgI/mL)个性化注射方案的成像效果初探[J]. 放射学实践,2014(4):369-372.
APA 刘建新.,姜健.,王霄英.,曹新鸣.,盛程程.,...&赵永为.(2014).100kVp条件下头颈CTA检查中碘克沙醇(270mgI/mL)个性化注射方案的成像效果初探.放射学实践(4),369-372.
MLA 刘建新,et al."100kVp条件下头颈CTA检查中碘克沙醇(270mgI/mL)个性化注射方案的成像效果初探".放射学实践 .4(2014):369-372.
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