| 刁海霞,丁康.左房容积追踪技术评估缩窄性心包炎患者左心房容积和功能变化[J].中国医学影像技术,2020,36(6): |
| 左房容积追踪技术评估缩窄性心包炎患者左心房容积和功能变化 |
| Left atrium volume tracking technique in assessment of left atrium volume and function changes in patients with constrictive pericarditis |
| 投稿时间：2019-07-22 修订日期：2020-06-14 |
| DOI： |
| 中文关键词: ［］ 心包炎 心房功能 容积 超声心动描记术 容积跟踪 |
| 英文关键词:［］Pericarditis Atrium function Volume Echocardiography Volume tracking |
| 基金项目:[]首都临床特色应用研究(Z181100001718014) |
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| 中文摘要: |
| ［］目的 探讨左心房容积追踪技术(LAVT)在评估手术前后缩窄性心包炎(CP)患者左心房容积和功能变化中的临床价值。方法 收集CP患者20例(术前组)、术前组行心包切除术治疗的患者20例(术后组)及正常实验对象20例(对照组)。收集三组受试者心尖四腔及两腔动态超声图像,采用LAVT技术获得左心房容积参数：最大容积(LAVmax)、预收缩容积(LAVpre)、最小容积(LAVmin),测量容积参数进行校正(LAVImax、LAVIp、LAVImin)；使用LAVT技术获得左心房容积变化速率参数：收缩期峰值充盈速率(dv/dtS)、舒张早期峰值排空速率(dv/dtE)、舒张晚期峰值排空速率(dv/dtA)。根据所得参数计算左心房总排空率(LAtEF)、被动排 |
| 英文摘要: |
| ［］Objective To explore the clinical value of left atrium volume tracking (LAVT) technique in assessment of left atrium (LA) volume and function changes in patients with constrictive pericarditis (CP). Methods Twenty patients with CP (Preoperative group), the preoperative group who underwent pericardiectomy (Postoperative group), twenty healthy patients with normal echocardiogram (Control group) were enrolled. Maximal LA volume index (LAVImax), presystolic LA volume index (LAVIpre), minimal LA volume index (LAVImin), systolic filling rate of left atrium (dv/dtS), early diastolic emptying rate of left atrium (dv/dtE), late diastolic emptying rate of left atrium (dv/dtA) were measured according to the left atrium volume-time curve and volume change velocity curve, which were obtained by LAVT . The left atrium total ejection fraction (LAtEF), left atrium passive ejection fraction (LApEF) and left atrium active ejection fraction (LAaEF) were also calculated. The parameters between groups were compared. Results There were obvious differences in LAVImin among three groups (all P＜0.05). LAVImin in preoperative group and postoperative group were larger than those in control group (all P＜0.05). LAVImin in preoperative group were larger than those in postoperative group (all P＜0.05). There were statistical differences in LAtEF, LApEF, LAaEF, dv/dtS, dv/dtE and dv/dtA among three groups (all P＜0.05). Those in preoperative group and postoperative group were smaller than those in control group (all P＜0.05). And those in preoperative group were smaller than those in postoperative group (all P＜0.05). Conclusion Left atrium volume and function in CP patients can be changed by pericardiectomy. And the changes can be assessed accurately by LAVT. |
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