斑点追踪成像技术评价慢性心力衰竭患者心脏再同步化治疗后的左心室扭转运动  

Assessment of left ventricular torsion in patient with heart failure after cardiac resynchronization therapy by using speckle tracking imaging

作　　者：张军[1] 李雪[1] 刘丽文[1] 朱霆[1] 刘兵[2] 李金芳[1] 

机构地区：[1]第四军医大学西京医院超声科,西安710033 [2]第四军医大学西京医院心内科,西安710033

出　　处：《中华医学超声杂志（电子版）》2009年第2期31-33,共3页Chinese Journal of Medical Ultrasound(Electronic Edition)

摘　　要：目的应用斑点追踪成像技术评价慢性心力衰竭(CHF)患者心脏再同步化治疗(CRT)后左心室扭转及其与左心室收缩功能之间的关系。方法获取18例慢性心力衰竭患者左心室的标准短轴基底部、心尖部的图像,应用斑点追踪成像技术测量心底部旋转角度(Rot-B)及心尖部旋转角度(Rot-A),比较慢性心力衰竭患者CRT术后3个月与术前左心室心底部旋转角度差值(△Rot-B)、心尖部旋转角度差值(△Rot-A)、扭转差值(△LVtor)与左心室射血分数差值(△EF)之间的关系。结果CRT术后3个月左心室心尖部旋转角度较术前明显增加,左心室扭转角度明显增加。△LVtor、△Rot-A与△EF(r=0.619,r=0.592)呈正相关。结论左心室扭转为评价CRT后患者左心室收缩功能提供了有价值的信息。Objective To evaluate the relationship between left ventricular torsion and left ventricu- lar systolic function in patients with chronic heart failure （CHF）after cardiac resynchronization therapy （CRT） by speckle tracking imaging（ST/）. Methods Two-dimensional echocardiographic images were a- chieved from the left ventricular short-axis views at the basal level and apical level of the left ventricle in 18 patients with CHF. The left ventricular basal peak rotation （Rot-B） and apical peak rotation （Rot-A） were measured at each level by STI. The difference of Rot-B, Rot-A left ventricular torsion （LVtor） within 3 months after CRT and baseline （ △ Rot-B, △ Rot-A, △ LVtor） were calculated. The correlation among △ Rot-B, △ Rot-A, △LVtor and the increase of ejection fraction（△ EF）were analyzed. Results The Rot-A and LVtor increased significantly within 3 months after CRT. The △ LVtor and △Rot-A were correlated posi- tively with △ EF（r = 0. 619, r = 0. 592）. Conclusion The left ventricular systolic torsion is novel means for assessment of the ventricular systolic function in patients with CRT.

关 键 词：超声心动描记术 充血性心力衰竭 心室 扭转 心脏再同步化治疗 

分 类 号：R541.6[医药卫生—心血管疾病]