Methods:To apply the Embedded Zerotree Wavelet Encoding and improved EZW in this artical to compress medical image of CT and to provide a comprarative evaluation of the improved EZW with EZW.

• 方法:应用嵌入式零树小波编码算法及本文提出的对其改进算法对CT医学图像压缩,并进行分析和比较。