The relationship between mean of CT number and variance of CT number to axial deformation are parabolas.
CT数的均值、方差随轴向变形变化关系曲线呈抛物线形式。
Mean CT attenuation values between normal pancreas and tumor and the number of metastasis of liver during the different phases were compared.
比较各期扫描正常胰腺组织与肿瘤的密度差异和肝转移瘤的发现率。
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