64层螺旋CT检测非瓣膜性心房颤动患者左房血栓的临床价值

Clinical value of 64-slices spiral CT for the detection of left atrial thrombi in patients with non-valvular atrial fibrillation

目的:探讨64层螺旋CT检测非瓣膜性心房颤动(NVAf)患者左房血栓的临床价值。方法:32例NVAf患者均行64层螺旋CT检查,其中有13例患者同时行经食管超声心动图(TEE)检查,对2种检测结果进行比较。结果:64层螺旋CT发现6例患者有左房血栓,其中2例同时行TEE检查,也发现有左房血栓;6例患者于64层螺旋CT显示"血栓前状态",其中3例同时行TEE检查示左房均存在左房自发超声对比现象(Ⅱ～Ⅳ级);20例患者64层螺旋CT检测中无血栓,8例同时行TEE检查,也排除了血栓的存在。结论:64层螺旋CT可以成为检测NVAf患者左房血栓的一种安全可靠的替代方法。

Objective：The aim of this study was to evaluate the clinical value of 64-slices spiral computed tomography for the detection of left atrial thrombi in patients with non-valvular atrial fibrillation （NVAf）. Method：64-slices spiral CT were performed in 32 patients with NVAf. Both 64-slices spiral CT and transesophageal echocardiography （TEE） were performed in 13 out of 32 patients with NVAf, comparing 64-slices spiral CT results with TEE results. Result. 64-slices spiral CT detected left atrial thrombi in six patients,in two of these patients, left atrial thrombi were demonstrated by TEE;64-slices spiral CT detected prothrombitic-state （PTS） of left atrial in six of thirty-two patients,in three of these patients, left atrial spontaneous echo contrast（LASEC）was noted in TEE 64-slices spiral CT ruled out the presence of thrombus in 20 patients, in eight of these patients without left atrial thrombi in TEE. Conclusion. This study suggests that 64-slices spiral CT may be used as a reliable alternative for the detection of left atrial thrombi.