双源CT颈部血管造影检查中DEBR和CoBR应用比较  

COMPARISON BETWEEN APPLICATION OF DEBR AND COBR IN DUAL ENERGY COMPUTED TOMOGRAPHIC CERVICAL ANGIOGRAPHY

作　　者：谢丽响[1] 袁莹莹[1] 张秀丽[1] 徐凯[1] 程广军[1] 

机构地区：[1]徐州医学院附属医院医学影像科,江苏徐州221000

出　　处：《齐鲁医学杂志》2011年第6期517-518,521,共3页Medical Journal of Qilu

摘　　要：目的比较双源CT（DSCT）在颈部血管造影检查中双能量自动去骨（DEBR）和常规3D软件自动去骨（CoBR）的应用效果。方法 30例临床怀疑颈部血管病变的病人行DSCT血管造影检查,获双能量数据（140 kV及80 kV）及融合数据（120 kV）,对双能量数据与融合数据分别采用DEBR及CoBR生成容积再现（VR）图像,然后手动去除残余骨质。比较DEBR及CoBR时间、最终后处理时间以及残余骨质情况与椎动脉缺损的长度。结果 DEBR及CoBR图像质量均达到诊断要求,但DEBR残余骨质少（t=2.69-12.96,P〈0.05）,椎动脉缺如也少于CoBR（t=12.96,P〈0.05）,且DEBR的最终后处理时间少于CoBR（t=6.82,P〈0.05）。结论 DEBR与传统CoBR比较,图像残余骨质少,可节省工作人员图像后处理时间,同时保证图像质量。Objective To study the application of dual energy-based bone removal（DEBR） versus conventional bone removal（CoBR） in dual energy computed tomographic cervical angiography（DECTCA）.Methods DECTCA was conducted in 30 patients with suspicious cervical vascular lesion,140 kVp and 80 kVp datasets were obtained.The imaging of the two groups was separately bone-removed automatically with dual energy and conventional 3D software,as well as manual bone remove.The time of DEBR and CoBR,final handling time,residual bone and defect of the length of vertebral artery were compared.Results The image quality of both DEBR and CoBR met the requirements for diagnosis.The residual bone was less,defect of vertebral artery shorter,and final handling time less in DEBR versus CoBR（t=2.69-12.96,P〈0.05）,（t=12.96,P〈0.05） and（t=6.82,P〈0.05）.respectively.Conclusion Compared with CoBR,DEBR has advantages as follows： reducing residual bone,saving time for image postprocessing,and ensuring the quality of image.

关 键 词：减影技术 体层摄影 X线计算机 颈部血管 

分 类 号：R814.42[医药卫生—影像医学与核医学]