电磁线圈
扫描仪
计算机科学
灵敏度(控制系统)
背景(考古学)
噪音(视频)
信号(编程语言)
信噪比(成像)
相控阵
单相
电子工程
算法
人工智能
电气工程
工程类
电信
古生物学
天线(收音机)
图像(数学)
生物
程序设计语言
作者
Mark Tygert,Jure Žbontar
出处
期刊:Communications in applied mathematics and computational science
[Mathematical Sciences Publishers]
日期:2020-06-20
卷期号:15 (2): 115-127
被引量:10
标识
DOI:10.2140/camcos.2020.15.1
摘要
We convert the information-rich measurements of parallel and phased-array MRI into noisier data that a corresponding single-coil scanner could have taken. Specifically, we replace the responses from multiple receivers with a linear combination that emulates the response from only a single, aggregate receiver, replete with the low signal-to-noise ratio and phase problems of any single one of the original receivers (combining several receivers is necessary, however, since the original receivers usually have limited spatial sensitivity). This enables experimentation in the simpler context of a single-coil scanner prior to development of algorithms for the full complexity of multiple receiver coils.
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