超声评价高度可疑肺栓塞患者下肢深静脉血栓

Ultrasonographic evaluation of lower extrimity deep vein thrombosis in patients with high-probability pulmonary embolism

目的探讨超声检查对发现高度可疑肺栓塞(PE)患者合并有下肢深静脉血栓(DVP)的价值。方法将161例临床及螺旋CT扫查高度可疑肺栓塞患者,按照是否有形成血栓危险因素和(或)深静脉血栓(DVT)症状分为两组。凡具有上述条件之一者为组1患者,共计118例;既无DVT症状也无危险因素者为组2,共计43例。所有患者均行超声检查。结果超声检查发现组1有DVT者15例,其中发生在膝及膝以上者4例,发生在小腿者11例。组2无一例发现有DVT (95%可信度)。组2在除外DVT的阴性预见性为100%(95%的可信度)。结论超声对发现高度可疑肺栓塞患者下肢DVT有重要价值。

Objective To assess the clinical significance of ultrasonography in evaluation of lower extrimity deep vein thrombosis（DVT）possibility in pulmonary embolism（PE）patients.Methods A total of 161 patients with high-possible pulmonary embolism underwent lower extrimity ultrasonography,and were divided into two groups according to whether having thrombotic risk factors and（or）the DVT symptoms（group 1,n=118）or not（group 2,n=43）.Results There were 15 patients with DVT in group 1,4 were at or above the knees,and 11 at calf,while no DVT was not detected in group 2（95% confidence）.The negative forecast of ultrasonography for exception DVT was 100% in group 2（95% confi- dence）.Conclusion Ultrasonography has significant value in evaluation of lower extrimity DVT in high-possible PE pa-tients.