CAJ | 학술논문

采用对ACR单幅图像法和NEMA两幅图像法两种相控阵线圈进行信噪比测量,计算得到两种方法的相关性方程,并对两种方法进行相互可替代性分析.结果表明两者在评价线圈性能上具有可替代性,但由于消除了系统的结构噪声,使NEMA两幅图像法的测量结果高于ACR单幅图像法.
채용대ACR단폭도상법화NEMA량폭도상법량충상공진선권진행신조비측량,계산득도량충방법적상관성방정,병대량충방법진행상호가체대성분석.결과표명량자재평개선권성능상구유가체대성,단유우소제료계통적결구조성,사NEMA량폭도상법적측량결과고우ACR단폭도상법.
In this paper, ACR single image method and NEMA dual-image method were measured SNR using two types of phased-array coils. The correlation equation of the two methods was obtained and substitutability of two methods was analyzed. The results showed that the two methods are replaceable in the evaluation of coils, but the later method gets higher SNR than the first method because structure noise is eliminated..