超声组织弹性成像对四肢深静脉血栓分期诊断的临床价值

目的：探讨超声组织弹性成像技术对四肢深静脉血栓形成分期诊断的临床价值。方法常规超声检查诊断为四肢深静脉血栓的87例患者纳入研究对象，根据患者症状开始时间将其分为急性期、亚急性期和慢性期血栓组，应用超声组织弹性成像技术进行弹性成像评分，同时计算血栓的应变比值（静脉周围肌肉组织/血栓），比较各组血栓弹性成像评分及应变比值的差异。结果急性期血栓弹性成像图像以红色为主；亚急性期血栓弹性成像图像以绿色为主；慢性期弹性成像图像以蓝色为主。慢性期血栓组及亚急性期血栓组弹性成像评分及血栓应变比值高于急性期血栓组（P＜0.05），慢性期血栓组弹性成像评分及应变比值高于亚急性期血栓组（ P＜0.05）。结论不同时期深静脉血栓的弹性成像评分及应变比值具有差异性，超声组织弹性成像技术可用于评价不同时期的四肢深静脉血栓的硬度变化，对于深静脉血栓的分期诊断具有一定的临床意义。

The clinical value of ultrasonic tissue elastography in staging diagnosis of limbs deep vein thrombosis

Objective To evaluate the clinical value of ultrasonic tissue elastography in staging diagnosis of limbs deep vein throm -bosis.Methods Conventional ultrasound diagnosis of 87 cases of limb deep vein thrombosis were included in the study .According to the starting time of the patient＆#39;s symptoms, the patients were divided into acute thrombosis group , sub-acute thrombosis group and chro-nic thrombosis group .The thrombosis were evaluated by ultrasound elastography technology , and the strain ratio （ B/A） between the muscle tissue around the vein and the thrombosis were calculated .The difference of the elastography score and the strain ratio between the groups was compared .Results In ultrasound elasticity image , the acute thrombosis was mainly red , the sub-acute thrombosis was mainly green , and the chronic thrombosis was mainly blue .The elastography score and the strain ratio of chronic thrombosis group and sub-acute thrombosis group were higher than those of acute thrombosis group .Compered to sub-acute thrombosis group ,the elastogra-phy score and the strain ratio of chronic thrombosis group were higher .Conclusion Because the elastography score and the strain ratio in different periods of deep vein thrombosis are obviously different , ultrasound elastography technology can be used to evaluate the hard -ness change in different stages of the deep vein thrombosis , it has certain clinical significance in staging diagnosis of limbs deep vein thrombosis .