计算在DWI与T2WI上病灶与肝组织之间的对比噪声比(CNR)并予以比较。
Contrast noise ratio (CNR) between lesion and liver tissue for DWI and T2WI were measured.
计算不同图像中肿瘤信噪比（SNR）、肿瘤与肝脏对比噪声比（CNR）及信号强度比（SIR）等数据，并进行统计学分析。
The signal to noise ratio (SNR) of tumors, contrast to noise ratio (CNR) and signal intensity ratio (SIR) of tumors and normal liver were calculated and analyzed.
目的对磁共振的螺旋桨技术就图像信噪比、对比度噪声比、伪影等图像质量要素进行相关性研究。
Objective Study on the relationship of Propeller technology and image quality such as signal-to-noise ratio (SNR), contrast-to-noise ratio (CNR) and artifact.
测量并记录2个密度区内感兴趣区像素值均值和噪声值，计算对比度噪声比。
The pixel mean value and noise of the image in region of interest were measured and recorded in 2 density areas, and the CNR was calculated.
测量并记录2个密度区内感兴趣区像素值均值和噪声值，计算对比度噪声比。
The pixel mean value and noise of the image in region of interest were measured and recorded in 2 density areas, and the CNR was calculated.
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