| 张 博,侯 敏,李江华,曹 硕,马征戈.速度向量成像技术对肥厚型心肌病左心室扭转功能和收缩功能的影响[J].,2020,(19):3770-3773 |
| 速度向量成像技术对肥厚型心肌病左心室扭转功能和收缩功能的影响 |
| Effects of Velocity Vector Imaging on Left Ventricular Torsion and Systolic Function in Hypertrophic Cardiomyopathy |
| 投稿时间：2020-02-21 修订日期：2020-03-16 |
| DOI：10.13241/j.cnki.pmb.2020.19.037 |
| 中文关键词: 肥厚型心肌病 速度向量成像技术 左心室 扭转功能 收缩功能 |
| 英文关键词: Hypertrophic cardiomyopathy Velocity vector imaging Left ventricle Torsion function Systolic function |
| 基金项目:河北省医药卫生科技发展计划项目（2016WS1812） |
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| 中文摘要: |
| 摘要 目的：研究速度向量成像技术对肥厚型心肌病（HCM）左心室扭转功能和收缩功能的影响。方法：纳入我院从2018年1月～2019年1月收治的HCM患者30例进行研究，记作病变组，另取同期于我院进行体检的健康志愿者30例作为对照组。比较两组常规左心功能超声心动图指标、左室整体扭转和解旋运动指标、左室局部扭转和解旋运动指标、圆周应变以及应变率。结果：病变组舒张末期容积（EDV）、收缩末期容积（ESV）、每搏量（SV）均较对照组更低（P＜0.05），而两组左室射血分数（LVEF）比较差异不显著（P＞0.05）。病变组心内膜的左心室扭转角度（LVtw）以及左心室扭矩（LVtor）均显著高于对照组，而心内膜及心外膜解扭转率（UntwR）显著低于对照组（P＜0.05）。病变组基底部心内膜旋转速率、心尖部心外膜旋转速率均显著低于对照组，心尖部心内膜旋转速率显著高于对照组，心尖部心外膜解旋速率显著高于对照组（P＜0.05）。病变组基底部心内膜圆周应变低于对照组，基底部、心尖部心外膜圆周应变高于对照组（P＜0.05）；病变组基底部、心尖部心外膜应变率均高于对照组（P＜0.05）。结论：HCM患者收缩功能降低，且局部心肌圆周方向的形变能力明显下降。 |
| 英文摘要: |
| ABSTRACT Objective: To study the effects of velocity vector imaging on left ventricular torsion and systolic function in hypertrophic cardiomyopathy (HCM). Methods: 30 patients with HCM admitted to our hospital from January 2018 to January 2019 were included in the study, and were recorded as pathological group. Another 30 cases of healthy volunteers who underwent physical examination in our hospital during the same period were taken as the control group. Two groups of conventional left ventricular functional echocardiography indexes, left ventricular total torsion and rotational motion indexes, left ventricular local torsion and rotational motion indexes, peripheral strain and strain rate were compared. Results: The end-diastolic volume (EDV), end-systolic volume (ESV) and pulsation (SV) levels in the lesion group were significantly lower than those in the control group (P<0.05), left ventricular ejection fraction (LVEF) was not significantly compared between the two groups (P>0.05). The left ventricular torsion Angle (LVtw) and left ventricular torque (LVtor) of the endocardium and epicardium in the lesion group were significantly higher than those in the control group, while the endocardium and epicardium Torsion rate（UntwR）were significantly higher than those in the control group (P<0.05). The rate of endocardium rotation at the base and epicardium rotation at the apex in the lesion group was significantly lower than that in the control group, and the rate of epicardium rotation at the apex was significantly higher than that in the control group (P<0.05). The peripheral strain of epicardium in the lesion group was lower than that in the control group, and the peripheral strain of epicardium in the base and apex was higher than that in the control group (P<0.05). The strain rate of epicardium in the base and apex of the diseased group was higher than that in the control group (P<0.05). Conclusion: The HCM patients systolic function was significantly lower than that in normal patients, and the deforming capacity in the circumferential direction of the local myocardium was significantly reduced. |
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