| 王方方,张瑞芳.纵向分层应变评价早期系统性红斑狼疮左心室收缩功能及同步性改变[J].中国医学影像技术,2020,36(5): |
| 纵向分层应变评价早期系统性红斑狼疮左心室收缩功能及同步性改变 |
| Longitudinal layer-specific strain imaging in evaluation of early changes of left ventricular systolic function and synchronicity in patients with systemic lupus erythematosus |
| 投稿时间：2019-07-26 修订日期：2020-05-19 |
| DOI： |
| 中文关键词: 红斑狼疮 系统性 心室功能 左 超声心动描记术 |
| 英文关键词:lupus erythematosus systemic ventricular function Left echocardiography |
| 基金项目:无 |
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| 中文摘要: |
| 目的 应用纵向分层应变成像技术评价亚临床系统性红斑狼疮(SLE)左心室收缩功能及同步性早期改变。方法 收集42例SLE患者(SLE组)及30例健康体检者(对照组),储存左心室心尖3个长轴切面的二维灰阶动态图像,离线分析获得左心室心肌分层纵向应变(LS)参数及各节段LS达峰时间的标准差(PSD),比较组间各参数差异。根据SLEDAI-2000评分标准将SLE患者分为非活动期(SLE-组)及活动期(SLE+组)两组,分析相关参数差异。结果 相比对照组,除心尖段各层心肌外,SLE组整体、基底段及心尖段3层心肌LS均减低(P＜0.05)；其中SLE+亚组整体、基底段及心尖段3层心肌LS均减低(P＜0.05)，SLE-亚组左心室整体、基底段心内膜下心肌均减低(P＜0.05)。SLE组总体及2亚组PSD均高于对照组(P＜0.05),2亚组间左心室三层心肌LS及PSD差异无统计学意义(P＞0.05)。结论 纵向分层应变技术能较敏感地评估亚临床SLE患者左心室心肌改变。 |
| 英文摘要: |
| Objective To explore the early changes of left ventricular systolic function and synchrony in systemic lupus erthematosus (SLE) patients with longitudinal layer-specifi strain imaging. Methods Forty-two SLE patients (SLE group) and thirty healthy subjects (control group) were collected. Two-dimensional gray-scale moving images of three long axial sections of the left ventricular apex were stored, and the parameters of the longitudinal strain (LS) and peak strain dispersion (PSD) were obtained. The differences of these parameters were compared between groups. According to SLEDAI-2000 scoring system, the patients were divided into inactive phase (SLE-) subgroup and active phase (SLE+) subgroup, and the differences of related parameters were further analyzed. Results Compared with control group, except apical segment, LS of global and segmental three-layer myocardium decreased in SLE group (all P<0.05). Among SLE group, LS of global and segmental three-layer myocardium decreased in SLE+ subgroup (P<0.05), while only the endocardial LS of the global, basal of left ventricle were found lower in SLE- subgroup than in control group (both P< 0.05). PSD were higher in SLE group and both 2 subgroups of SLE than in control group (all P < 0.05). There was no significant difference of LS of left ventricular myocardium or PSD between 2 subgroups of SLE (all P>0.05). Conclusions Longitudinal layer-specific strain imaging can be used to sensitively evaluate the subclinical left ventricular myocardial changes in SLEpatients. |
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