成像体模
信噪比(成像)
电磁线圈
加速度
噪音(视频)
信号(编程语言)
生物医学工程
物理
计算机科学
医学
光学
人工智能
图像(数学)
量子力学
经典力学
程序设计语言
作者
Qiaoyan Chen,Guoxi Xie,Chao Luo,Xing Yang,Jin Zhu,Jo Lee,Shi Su,Dong Liang,Xiaoliang Zhang,Xin Liu,Ye Li,Hairong Zheng
出处
期刊:IEEE Transactions on Medical Imaging
[Institute of Electrical and Electronics Engineers]
日期:2018-10-01
卷期号:37 (10): 2290-2297
被引量:12
标识
DOI:10.1109/tmi.2018.2839191
摘要
Due to a lack of fetal imaging coils, the standard commercial abdominal coil is often used for fetal imaging, the performance of which is limited by its insufficient coverage, element number, and Signal-to-noise ratio (SNR). In this paper, a dedicated 36-channel coil array, of which size can best fit the body sizes of pregnancy gestation from 20 to 37+ weeks, was designed for fetal imaging at 3T. SNR with full phase encoding and G-factor denoted as noise amplification for parallel imaging were quantitatively evaluated by phantom studies. Compared with a commercial abdominal coil array, the proposed 36-channel fetal array provides not only SNR improvements in full phase encoding (with 10% in the region where the whole fetal body was located, and up to 40% in the edge region where the fetal brain and heart may appear) but also an augmented parallel imaging capability and remarkable SNR improvements at high acceleration factors.
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