本文主要介绍在PCI图像采集系统的基上，由B超序列图像重建出全方61 t4型心动图。通过梯度算法、曲线拟合算法等图像处理技术获得心动图波形函数，采用自回归谱估计分析获得较为满意的结果。谱分析方法为心脏病的临床诊断提供了一种新的方法。

-This paper mainly introduces the PCI-based image acquisition system, the B-sequence of images from the reconstruction of a full side-mode echocardiography 61 t4. Through the gradient algorithm, curve fitting algorithm for image processing technology, such as echocardiography wave function, using analysis of autoregressive spectral estimation to obtain more satisfactory results. Spectral analysis method for the clinical diagnosis of heart disease and provides a new approach.