DSCTV与DUS对诊断下腔静脉及双下肢深静脉血栓的价值分析  

To analyze the value of DSCTV and DUS in the diagnosis of thrombosis in inferior vena cava and bilateral lower extremities deep venous

作　　者：刘剑[1] 陈光文[2] LIU Jian;CHEN Guang-wen

机构地区：[1]成都体育学院附属体育医院放射科,四川成都610041 [2]四川省人民医院放射科,四川成都610072

出　　处：《中国医学装备》2017年第5期41-44,共4页China Medical Equipment

摘　　要：目的:分析探讨双源CT直接法下肢深静脉CT造影(DSCTV)与多普勒超声(DUS)诊断下腔静脉及双下肢深静脉血栓的价值。方法:选取40例诊断可疑下肢深静脉血栓(DVT)患者,对其进行DSCTV检查,其中原始图像数据均采用多模式图像重建分析;在DSCTV检查前、后一周,所有患者均需要实施下腔静脉和双下肢深静脉DUS检查;其中22例患者额外采取下肢深静脉X射线数字缩影血管造影(DSA)检查。结果:DUS和DSCTV之间对DVT所得的诊断结果存在较好的一致性,其Kappa值=0.784。DUS对下肢DVT的灵敏度、特异度以及准确率分别为93.4%、86.7%和91.6%,均低于DSCTV下肢DVT的灵敏度(97.2%)、特异度(91.1)和准确率(95.6%)。通过绘制两者的ROC曲线可得出DUS的AUC值为0.897,而DSCTV的AUC值为0.936,两者AUC值比较差异无统计学意义(Z=1.143,P>0.05)。结论:DSCTV具有独特的扫描和后处理技术,在DVT诊断方面具有较好的参考价值。Objective:To explore the clinical value of dual-source CT direct method lower extremity deep vein CT angiography(DSCTV)and Doppler ultrasound(DUS)in the diagnosis of thrombosis in inferior vena cava and bilateral lower extremities deep venous.Methods:40suspected patients with lower extremities deep vein thrombosis(DVT)were enrolled to accept DSCTV,and the every original image data of this detection was analyzed by using multi-mode image reconstruction analysis.One week before and after DSCTV,all of patients need carried out DUS detections for inferior vena cava and bilateral lower extremities deep venous.22cases of these patients were detected by lower extremity deep vein X-ray digital subtraction angiography(DSA).Results:There was better consistency for diagnosis results between DUS and DSCTV,and their Kappa value was0.784.The sensitivity,specificity and accuracy of DUS for lower extremity DVT,respectively,were93.4%,86.7%and91.6%,and each result of DUS was lower than that of DSCTV(sensitivity with97.2%,specificity with91.1%and accuracy with95.6%).By drawing ROC curve,the AUC value of DUS was0.897,and that of DSCTV was0.936,while the difference between them was no significant(Z=1.143,P>0.05).Conclusion:DSCTV possesses unique scanning and post-processing technique,which has a good reference value in the diagnosis for DVT.

关 键 词：双源CT直接法下肢深静脉CT造影 多普勒超声 下腔静脉 血管造影术 体层摄影术 

分 类 号：R445.1[医药卫生—影像医学与核医学]