| 牟立欣,于云霞,王永槐,赵翠婷,孔凡鑫,李萌,马春燕,杨军.二维斑点追踪技术评价冠状动脉慢血流患者左心室整体收缩功能[J].中国医学影像技术,2020,36(S1):20~24 |
| 二维斑点追踪技术评价冠状动脉慢血流患者左心室整体收缩功能 |
| Evaluation of global left ventricular systolic function in patients with coronary slow flow by two-dimensional speckle tracking technique |
| 投稿时间：2020-02-07 修订日期：2020-05-10 |
| DOI：10.13929/j.issn.1003-3289.2020.z1.005 |
| 中文关键词: 冠状动脉疾病 心室功能,左 超声心动描记术 |
| 英文关键词:coronary artery disease ventricular function, left echocardiography |
| 基金项目:国家自然科学基金（81871373）、辽宁省自然科学基金联合基金（20180530052）。 |
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| 中文摘要: |
| 目的 采用二维斑点追踪成像（2D-STI）评估冠状动脉慢血流（CSF）患者左心室整体收缩功能。方法 对43例CSF患者（CSF组）及35例一般资料匹配患者（对照组）分别行常规超声心动图检查，应用2D-STI技术获得左心室收缩期峰值整体纵向应变（GLS）、整体径向应变（GRS）、整体圆周应变（GCS）及整体扭转角度峰值（Ptw）。比较2组间二维应变参数，分析与常规超声参数的相关性。结果 CSF组左心室GLS比对照组减低（P<0.05），2组间左心室射血分数（LVEF）、GCS、GRS及Ptw差异均无统计学意义（P均>0.05）；CSF患者GLS与冠状动脉平均心肌梗死溶栓试验帧数（mTFC）呈正相关（r=0.34，P<0.05），且GLS预测CSF的截点值为-18.71%，敏感度81.00%，特异度50.00%。结论 二维应变参数可用于评估CSF患者左心室整体收缩功能。 |
| 英文摘要: |
| Objective To evaluate the systolic function of coronary slow flow (CSF) patients and left ventricle by 2D speckle tracking imaging (2D-STI). Methods Totally 43 CSF patients (CSF group) and 35 general data matching patients (control group) were examined by routine echocardiography. 2D-STI was performed to observe global longitudinal strain (GLS), global radial strain (GRS), global circumferential strain (GCS), peak twist (Ptw). Then 2D strain parameters were compared between the two groups, and the correlations of 2D strain parameters and conventional ultrasonic parameters were analyzed. Results CSF group had lower left ventricular GLS than control group (P<0.05), while there was no significant difference in left ventricular ejection fraction (LVEF), GCS, GRS and Ptw between the two groups (P>0.05); GLS was positively correlated with mean coronary flow velocity (mTFC) (r=0.34, P<0.05), and GLS predicted CSF cut-off value was —18.71%, sensitivity was 81.00%, specificity was 50.00%. Conclusion 2D strain parameters can be used to assess left ventricular overall constriction function in patients with CSF. |
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