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100 kVp条件下碘克沙醇(270 mg I/mL)应用于主动脉CTA 检查的可行性研究
其他题名Feasibility of aorta CT angiography using 100kVp technique and iodixanol(270mg I/mL)as contrast medium
姜原; 赵永为; 王霄英; 张保翠; 王蕊; 罗健; 高福生; 何静
关键词主动脉 血管成像 体层摄影术 对比剂 X线计算机 辐射量 Aorta Angiography Tomography Contrast Medium X-ray Computed Radiation Dose
文章类型Journal Article
摘要目的:探讨100 kVp条件下碘克沙醇(270 mg I/mL)应用于主动脉CTA 检查的可行性。方法:临床疑诊主动脉病变而行主动脉CTA检查的连续21例患者,分为两组,分别采用不同的CT 扫描方案:A 组10例,采用管电压120 kVp,对比剂为碘帕醇(370 mg I/mL);B组共11例,采用管电压100 kVp,对比剂为碘克沙醇(270 mg I/mL)。采用两独立样本t检验(非正态分布采用 Mann-Whitney U检验)来比较两组的临床资料、CT辐射剂量、图像质量主、客观评价指标。结果:两组患者的性别、年龄和身体质量指数(BMI)的差异均无统计学意义(P=0.132、0.151和0.814)。两组的CT 辐射剂量差异亦无统计学意义(P>0.05)。B组患者接受碘的剂量明显低于A 组,且差异有高度统计学意义(P<0.001)。两组图像主观评分的差异无统计学意义(P=0.898)。图像的客观评分:两组的主动脉主干及其主要分支的 CT 值均>300 HU,差异无统计学意义(P>0.05);A 组 CNR 优于 B 组,2组差异有高度统计学意义(P=0.002)。结论:使用100 kVp、碘克沙醇(270 mg I/mL)进行主动脉CTA检查可以满足临床诊断需要。 Objective:To evaluate the feasibility of using 100kVp as tube voltage and iodixanol (270mg I/mL)as contrast medium in aorta CT angiography (CTA).Methods:2 1 continuous patients with clinically suspected aortic lesion un-derwent aorta CT angiography.They were divided into two groups(Group A and B)based on different scan protocol.Group A included 10 patients using following parameters:120kVp and iopamidol (370mg I/mL).Group B included 11 patients using following parameters:100kVp and iodixanol (270mg I/mL).The clinical information,CT radiation dose,objective and subjective assessment of image quality of these two groups were retrospectively analyzed by independentttest or Mann-Whitney U test.Results:The differences of sex,age and body mass index (BMI)of two groups were not statistically signifi-cant (P= 0.132,0.151 and 0.814,respectively).The difference of CT radiation dose of two groups was not statistically sig-nificant (P>0.05).The volume of iodine received in Group B was significantly lower than that of Group A,with significant statistic difference (P<0.001).The difference of subjective assessment score of image quality in two groups was not statis-tically significant (P= 0.898).The average CT values of the aorta trunk and its major branches in two groups were higher than 300HU,but there was no statistically difference between two groups (P>0.05).The CNR in Group A was better than that of Group B,with significant statistic difference (P= 0.002).Conclusion:High quality images of aorta CTA,which can meet the needs of clinical diagnostic,can be acquired by using 100kVp as tube voltage and iodixanol (270mg I/mL)as contrast medium.
作者单位北京大学第一医院医学影像科, 北京,100034
Recommended Citation
GB/T 7714
姜原,赵永为,王霄英,等. 100 kVp条件下碘克沙醇(270 mg I/mL)应用于主动脉CTA 检查的可行性研究[J]. 放射学实践,2014(4):357-360.
APA 姜原.,赵永为.,王霄英.,张保翠.,王蕊.,...&何静.(2014).100 kVp条件下碘克沙醇(270 mg I/mL)应用于主动脉CTA 检查的可行性研究.放射学实践(4),357-360.
MLA 姜原,et al."100 kVp条件下碘克沙醇(270 mg I/mL)应用于主动脉CTA 检查的可行性研究".放射学实践 .4(2014):357-360.
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