目的应用二维及M-型超声心动图技术评价艾滋病患者左心室收缩功能的变化。
Objective To assess left ventricle(LV) systolic function in acquired immunodeficiency syndrome(AIDS) patients with two dimensional and M-mode echocardiography.
误差图像进行分形矢量量化编码时，使用设计的自适应二维维纳数字滤波器，对收缩的均值图像进行滤波后，可构造好的码书。
When coding the erroneous image by fractal vector quantization, a self-adaptive 2-d wiener digital filter to filtrate the contracted mean value image, which can result into a good quality codebook.
方法采用二维、脉冲式多普勒超声检测DSE患者左室收缩和舒张功能。
Methods The left ventricular systolic and diastolic function of patients was evaluated using two-dimensional and pulse Doppler echocardiography by DSE.
方法采用二维、脉冲式多普勒超声检测DSE患者左室收缩和舒张功能。
Methods The left ventricular systolic and diastolic function of patients was evaluated using two-dimensional and pulse Doppler echocardiography by DSE.
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