| 谢明星,蒲朝霞,王新房,方凌云,卢晓芳,杨亚利,贺林.实时三维彩色血流成像技术定量评价室间隔缺损分流量的初步探讨[J].中国医学影像技术,2006,22(4):487~489 |
| 实时三维彩色血流成像技术定量评价室间隔缺损分流量的初步探讨 |
| Quantification of shunt volume of ventricular septal defect by real-time three-dimensional color Doppler flow imaging: initial exploration |
| 投稿时间：2005-11-27 修订日期：2006-01-21 |
| DOI： |
| 中文关键词: 实时三维超声心动描记术 彩色多普勒血流成像 室间隔缺损 分流量 |
| 英文关键词:Real-time three-dimensional echocardiography Color Doppler flow imaging Heart septal defects, ventricular Shunt volume |
| 基金项目:本研究受湖北省科技厅自然科学基金资助(4-259)。 |
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| 中文摘要: |
| 目的 探讨实时三维彩色血流成像技术 (RT-3D CDFI) 评价室间隔缺损分流量的价值。方法 应用RT-3D CDFI成像技术采集46例单纯性室间隔缺损(VSD)患者的三维彩色分流信号数据,导入TomTec三维图像工作站,于收缩期采用八平面法勾画并计算分流束的彩色血流信号容积 (SJV),并与二维频谱多普勒法QP-QS所测得分流量结果行相关性分析。结果 ①缺损直径小于或等于主动脉根部直径2/3的小、中VSD的SJV值与QP-QS值相关良好(r＝0.87;r＝0.79),且两者的均值无显著性差异 (P>0.05);②缺损径线大于主动脉根部直径2/3的大VSD,RT-3D CDFI所测SJV值明显低估分流量(r＝0.55)。结论 RT-3D CDFI技术可从三维空间对VSD分流进行评估,为临床定量评估中小型VSD的分流提供了一种新方法。 |
| 英文摘要: |
| Objective To evaluate the use of real-time three-dimensional color Doppler flow imaging (RT-3D CDFI) in the noninvasive assessment of color Doppler shunt jet volume (SJV) in patients with isolated ventricular septal defect (VSD). Methods Fourty-six patients with VSD were examined by RT-3D CDFI. The shunt volume was manually outlined by the eight-plane method with TomTec 4D Cardio workstation. Comparative analysis was performed between the results of RT-3D CDFI and traditional two-dimensional methods. Results SJV of small and medium ventricular septal defects had good correlation with QP-QS respectively, which was obtained by frequency Doppler method (r＝0.87 and r＝0.79). However, SJV of large ventricular septal defects was underestimated by RT-3D CDFI (16.61 ml vs 68.13 ml, r＝0.55, P<0.05). Conclusion This study indicates that RT-3D CDFI can provide a new reliable and accurate way to assess shunt blood flow of small and medium VSD. |
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