| 魏常华,袁建军,纪淑姣.实时三维超声心动图评价左室整体收缩和舒张功能的研究[J].中国医学影像技术,2008,24(s1):96~98 |
| 实时三维超声心动图评价左室整体收缩和舒张功能的研究 |
| Assessment of left ventricular global systolic and diastolic function using real-time three-dimensional echocardiography |
| 投稿时间：2008-03-04 修订日期：2008-07-23 |
| DOI： |
| 中文关键词: 超声心动描记术,三维 心室功能,左 |
| 英文关键词:Echocardiography, time three-dimensional Ventricular function, left |
| 基金项目: |
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| 中文摘要: |
| 目的 探讨实时三维超声心动图(RT3DE)评价左室收缩和舒张功能的临床应用价值。 方法 研究对象分为3组,A组28例健康志愿者,B组24例高血压病患者,C组22例扩张性心肌病的患者。对所有研究对象进行经胸二维和实时三维超声心动图检查,采集组织多普勒图像和全容积三维图像,应用Qlab 3DQ软件对三维数据库进行分析,得到左室舒张末容积(EDV)、收缩末容积(ESV)和射血分数(EF),根据三维数据库计算出峰值射血率(PER)、舒张早期峰值充盈率(PFR)、PER/EDV、PFR/ |
| 英文摘要: |
| Objective To assess left ventricular global systolic and diastolic function using real-time three-dimensional echocardiography (RT3DE). Methods Subjects were divided into three groups. Group A consisted of twenty-eight normal subject, group B included twenty-four patients with hypertensive (HTN), group C consisted of twenty-two patients having dilated cordiomyopathy (DCM). Participants were selected undergoing full volume real-time three-dimensional echocardiography. The global and 17-segmental volume-time curves were obtained by the off-line Qlab softwere. The end-diastolic volume (EDV), end-systolic volume (ESV) and ejection fraction (EF) were derived. From volume date sets by RT3DE, we determined peak ejection rate (PER), peak early filling rate (PFR), PER/EDV and PFR/EDV. Analysis of images by tissue Doppler imaging (TDI) using Qlab SQ softwere, We determined isovolumic contraction time (ICT), isovolumic relaxation time (IRT) and ejection time (ET). Then Tei index were calculated according the formula: Tei index=(ICT + IRT)/ET. Results EDV, ESV and Tei was larger and PFR/EDV was lower in group B and C compared with group A (all P＜0.05), IRT significantly longer and ET shorter in group B and C than group A (all P＜0.05). EF and PER/EDV significantly lower and ICT longer in group C compared with group A (all P＜0.05). There were close correlation between PER/EDV and EF (r=0.893,P＜0.05), between PER/EDV and ICT (r=－0.618,P＜0.05), between PFR/EDV and IRT (r=－0.450, P＜0.05) and between PER/EDV and PFR/EDV (r=0.839, P＜0.05). Conclusion RT3DE is a promising approach to evaluate left ventricular global systolic and diastolic function. PER/EDV and PFR/EDV may be potential parameters for assessing left ventricular global systolic and diastolic function. |
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