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1.序言对于超声波心脏图象,今天有可能跨越形态诊断学的界限,测量出心脏的结构,因而做出心脏的功能分析。计算机系统使这个任务易于实现。此外它还可以对整个心脏周期作详细的功能观察。要对超声波心脏图象作定量计算的前提是要有心内膜和心外膜的连续边界的良好记录。对于一维M型超声波心脏图象(超声心动图),这个前提在理论上只要有高的时间分辨率(1000脉冲/秒)和空间分辨率(约1 mm)就能满足。但是可能遇到的困
1. Preface For ultrasound cardiac images, it is possible today to cross the boundaries of morphological diagnostics to measure the structure of the heart and thus to make a functional analysis of the heart. Computer system makes this task easy to implement. In addition, it can be a detailed functional observation of the entire heart cycle. The precondition for a quantitative calculation of the ultrasound heart image is to have a good record of the continuous borders of the endocardium and epicardium. For one-dimensional M-mode echocardiography (echocardiography), this premise theoretically suffices for high temporal resolution (1000 pulses / second) and spatial resolution (about 1 mm). But may encounter difficulties