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.
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