Buda A J, Delp E J, Meyer C R, Jenkins J M, Smith D N, Bookstein F L, Pitt B
Am J Cardiol. 1983 Aug;52(3):384-9. doi: 10.1016/0002-9149(83)90144-3.
Quantitative studies of left ventricular function using 2-dimensional echocardiography have been limited because of a lack of computerized methods to automatically analyze the echocardiographic images. Previous computer efforts have been directed at digitizing the video output of the 2-D echocardiogram, but this digitizing method has significant limitations. A direct digitization method that produces improvement in signal-to-noise ratio and, subsequently, improved automatic detection of endocardial and epicardial borders, was developed. With definition of these edges, left ventricular global and regional analysis is possible frame by frame so that dynamic changes in cardiac function may be assessed throughout the cardiac cycle. Further technologic advances in 2-D echocardiographic acquisition and image processing should allow computer processing of 2-D echocardiographic data in real time.
由于缺乏自动分析超声心动图图像的计算机化方法，利用二维超声心动图对左心室功能进行定量研究一直受到限制。以往的计算机工作主要致力于将二维超声心动图的视频输出数字化，但这种数字化方法存在显著局限性。一种能提高信噪比并进而改善心内膜和心外膜边界自动检测的直接数字化方法被开发出来。通过定义这些边界，可以逐帧进行左心室整体和局部分析，从而在整个心动周期中评估心脏功能的动态变化。二维超声心动图采集和图像处理方面的进一步技术进步应能实现对二维超声心动图数据的实时计算机处理。
