实时三维超声心动图定量评价冠状动脉介入治疗术后左心功能的研究

目的：探讨实时三维超声心动图（RT-3DE）在评价经皮冠状动脉介入治疗（PCI）术前后患者左心室功能的价值。方法：选择成功接受PCI治疗的患者30例作为冠心病组，无冠状动脉狭窄者20例作为正常对照组，应用RT-3DE对冠心病组于术前3～5天、术后3天及术后1个月测量左室舒张末容积（EDV）、左室收缩末容积（ESV）、左心室射血分数（EF）、峰值射血率（PER）、峰值充盈率（PFR）、达到最小收缩容积时间的标准差（Tmsv16-SD）及最大差值（Tmsv16-Dif），对照组与冠心病组的测值进行比较，PCI术前后测值进行比较。结果：病例组术前EDV、ESV、Tmsv16-SD、Tmsv16-Dif显著增加（P<0.01），EF、PER、PFR显著减小（P<0.01）；与术前比较，患者术后EDV、ESV、Tmsv16-SD、Tmsv16-Dif显著减小，整体EF、PER、PFR显著增加（P＜0.01)。结论：冠心病患者的左心室功能可发生重构，PCI能逆转其重构，RT-3DE可准确评价PCI术后患者左心室功能的逆转。

Quantitative assessment of left ventricular function in patients with percutaneous coronary intervention by real-time three-dimensional echocardiography

Objective: To assess the value of real-time three-dimensional echocardiography(RT-3DE) in the evaluation of left ventricular function in patients with coronary artery disease(CAD) after percutaneous coronary intervention(PCI).Methods: RT-3DE was performed in 30 patients who accepted PCI treatment successfully and 20 normal subjects who had no coronary artery stenosis.RT-3DE was performed and three-dimensional image data were analyzed.Series of left ventricular parameters were measured in 3~5 days pre-,3 day...