Comparative Study on the Effectiveness of Trans-Esophageal Echocardiography and Trans-Thoracic Echocardiography in Detection of Left Atrial Appendage Thrombus in Atrial Fibrillation Patients
LI Xiang-nong1, LI Da-hai2, LI Chang-yun1, SHEN Yan1
1.Department of Ultrasound, The 252nd
Hospital of PLA, Baoding Hebei 071000,
China; 2.Department of Ultrasound, The
Affiliated Hospital of Hebei University,
Baoding Hebei 071000, China
Abstract：Objective To compare the effectiveness of application of TEE (Trans-Esophageal Echocardiography) and TTE (Trans-Thoracic Echocardiography) in detection of LAAT (Left Atrial Appendage Thrombus) in patients with AF (Atrial Fibrillation). Methods TEE and TTE examinations were simultaneously performed in 74 cases of patients with non-valvular AF so as to compare the detection of LAAT. Results Among 74 AF patients, TTE revealed 9 LAAT patients (12.16%) with 3 FP (False Positive) cases and 5 SEC (Spontaneous Echo Contrast) patients (6.76%) with 2 FP (False Positive) cases; while, TEE detected 24 cases of LAAT (32.43%) and 18 cases of SEC (24.32%). Statistically significant differences existed between two methods. The ultrasonographic findings of LAAT showed abnormal echo clumps attached to the inner wall of LAA with low or slightly strong echos. The ultrasonography of LAA SEC revealed the swirling or cloudy signs inside the LAA, indicating the high risks of thrombus formation. Conclusion TEE demonstrated its advantages over TTE in detection of LAAT, which had significant clinical effectiveness in treatment of AF.
李向农，李大海，李长云，申燕. 经食道及经胸超声检测房颤患者左心耳血栓的对比研究[J]. 中国医疗设备, 2015, 30(7): 54-56.
LI Xiang-nong, LI Da-hai, LI Chang-yun, SHEN Yan. Comparative Study on the Effectiveness of Trans-Esophageal Echocardiography and Trans-Thoracic Echocardiography in Detection of Left Atrial Appendage Thrombus in Atrial Fibrillation Patients. China Medical Devices, 2015, 30(7): 54-56.
