波谱学杂志2012，Vol.29Issue(4)：508-520,13.
永磁微型磁共振成像仪的梯度线圈与图像质量
Gradient Coil of Permanent Magnet Mini-Magnetic Resonance Imager and Image Quality
摘要
Abstract
Effects of gradient field linearity on the quality of images acquired on a permanent magnet mini-magnetic resonance imager were analyzed by theoretical analyses and numerical simulation. It was shown that gradient field with high linearity is a prerequisite to obtain high-quality images of small animals, such as mice, on permanent magnet, low field strength micro-magnetic resonance imagers. The gradient field linearity specification reported in the literature is too low to acquired high-quality mouse images. The image quality could not be improved by software compensation methods. The newly developed gradient field coil with high linear property and our independent intellectual property was also presented. The optimized gradient coil has been installed on our instrument , and yielded a better quality image.关键词
磁共振成像(MRI)/永磁微型三维磁共振成像仪/线性/梯度线圈/计算机仿真Key words
MRI/ Permanent Magnet Mini-mgnetic 3D Resonance Imager/ linearity/ gradient coil/ simulation分类
医药卫生引用本文复制引用
侯淑莲,谢寰彤,侯晓吻,李石玉,陈伟..永磁微型磁共振成像仪的梯度线圈与图像质量[J].波谱学杂志,2012,29(4):508-520,13.基金项目
河北省科学技术厅科研计划资助项目(08202133D). （08202133D）
