目的 研发面向移动平台的左心室舒张功能超声数据可视化评价技术,并初步探讨其应用价值.方法 应用Adobe Flex builder 4.0作为数据可视化基本工具,以美国和欧洲超声心动图协会联合颁布的诊断指南为规范蓝本,设计研发移动应用程序并将其部署在iPad4移动平台,通过临床测试和应用对系统进行修正和完善.结果 实现在移动平台对射血分数正常或减低患者的左心室充盈压和舒张功能进行超声数据可视化评价,能在急诊床旁超声检查时同步分析并判断结果,并以图形展现算法框架,以动画表达分析步骤,以轴线表示指向信息,以颜色区分病情轻重,实现评价流程的视觉呈现.结论 面向移动平台的超声数据可视化评价技术可以随时随地、便捷、快速、有效地评价左心室舒张功能,有望成为移动医疗背景下心功能评价的重要辅助手段.%Objective To research and develop the mobile platform-oriented echocardiogram data visualization technology for the evaluation of left ventricular diastolic function,and investigate its application value.Methods First,diagnostic algorithms for the evaluation of left ventricular diastolic function (based on recommendations from ASE & EAE guidelines) were programmed into a mobile application software package,using Adobe Flex builder 4.0 as a basic tool for data visualization.Second,the program was installed in the Apple iPad4 tablet computer,then debugged and improved according to feedback information from practical applications.Results The echocardiogram data visualization for the estimation of left ventricular filling pressures in patients with depressed ejection fraction(EF) or normal EF and grading diastolic function can be implemented in mobile platform device,and simultaneously with emergency bedside echocardiography.The evaluation process can be visually presented by using the graphics to show the algorithm framework,the animation to express the analysis step,the axis to indicate the direction of information,and the color to differentiate the degree of the diastolic dysfunction.Conclusions The mobile platform-oriented echocardiogram data visualization technology makes the evaluation of left ventricular diastolic function more convenient,efficient and fast,and shows its potential to become an important adjunct to evaluation of cardiac function in the context of mobile health.
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