双源CT直接法下肢静脉成像对深静脉血栓的诊断价值  

The diagnostic value of direct dual-source CT venography for lower extremity deep venous in deep venous thrombosis

作　　者：易文芳[1] 武志峰[2] 鄂林宁[2] 吴山[2] 

机构地区：[1]山西医科大学研究生学院,山西太原030001 [2]山西医学科学院山西大医院影像中心CT室,山西太原030032

出　　处：《中国临床医学影像杂志》2015年第7期518-522,共5页Journal of China Clinic Medical Imaging

摘　　要：目的:探讨双源CT双能量扫描模式行直接法双下肢深静脉CT造影(DSCTV)检查,对下肢深静脉血栓(DVT)的诊断价值。方法:对临床疑诊DVT的34例患者行DSCTV检查,获取原始图像数据,并经后处理进行多模式图像重建分析,所有患者均在检查前后1周内行双下肢深静脉及下腔静脉多普勒超声(DUS)检查,其中19例行下肢深静脉X线数字减影血管造影(DSA)检查。结果:本组34例患者下肢深静脉检出病变血管共254支,与DUS检查对比,两种方法诊断结果一致性检验,Kappa值=0.759,P<0.05;以DSA诊断结果为金标准,其检出DVT灵敏度、特异度分别为:97.1%、90.0%,ROC曲线下面积(AUC)为0.935。结论 :双源CT直接法下肢深静脉造影以其独特的扫描及后处理技术,对诊断下肢深静脉血栓具有较高的临床价值。Objective： To evaluate the diagnostic value of direct dual-source CT venography dual-energy examination for deep venous thrombosis of lower extremity （DVT）. Methods： Thirty-four patient who were clinically suspected DVT received a direct DSCTV examination including both two lower extremities. The original image data and image reconstruction with muhi- model after processing were obtained. All the patients were taken Doppler ultrasound （DUS） examination with both two lower extremities and inferior vena cava within one week before or after DSCTV, 19 cases were examined with lower extremity deep vein X-ray DSA. Results： Thirty-four patients with 254 abnormal branches were shown, consistency test is used to check the results of DSCTV and DUS. Kappa=0.76, P〈0.05. DSA was the gold standard, the sensitivity, specificity of DVT detection by DSCTV were： 97.1%, 90%, respectively, the area under the ROC curve（AUC） was 0.935. Conclusions： Direct dual-source CT venography has an advantage of unique scan and post-processing technology for detecting lower extremity deep venous, so it has a high clinical value in the diagnosis of deep venous thrombosis of lower limb.

关 键 词：静脉血栓形成 体层摄影术 螺旋计算机 血管造影术 数字减影 

分 类 号：R543.6[医药卫生—心血管疾病] R814.42[医药卫生—内科学]