实时三维超声心动图评价房室间隔缺损大小的初步研究

目的 探讨实时三维超声心动图测量房、室间隔缺损面积的可行性和应用价值。方法 应用实时三维超声诊断仪获取20例先天性房间隔和／或室间隔缺损患者的三维数据库，利用三维数据工作站对缺损面积的大小进行测量分析，部分病例的三维测量值与二维超声测量值及手术结果对照。结果 实时三维成像能以多种视角观察间隔缺损的全貌并可对缺损面积进行三维测量，同二维超声所测直径相比，三维超声测量结果与手术结果具有更好的相关性(r=0．78 vs r=0．91)。结论 实时三维超声可显示房室间隔缺损的整体形态，可对缺损面积进行准确的定量分析，具有重要的临床应用潜力。

Initial Exploration of Real-Time Three-Dimensional Echocardiography in the Area Measurement of Congenital Septal Defects

Objective To explore the feasibility and the value of real-time three-dimensional echocardiography (RT-3DE) in quantative area evaluation of atrial septal defect (ASD) and ventricular septal defect (VSD). Methods Twenty patients with ASD and/or VSD were examined with RT3D. Three-dimensional image data-base was post-processed using 3D work-station. The results were compared with the results measured by two-dimensional echocardiography and surgery results. Results RT-3DE produced novel views of congenital heart defects and offered improved quantification of defect area. The areas obtained from 3DE had better correlation with surgery results than diameter measured in 2DE ( r =0.78 vs r =0.91). Conclusion RT-3DE offers additional special information in congenital heart disease without extending examining time,and permits quantitative recording of septal defect dynamics. It has good potential to expand the use of echocardiography in clinical field.