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1.前言核磁共振(NUCLEAR MAGNETICRESONANCE)略称NMR,作为一种成像方法的应用,正在医学诊断领域及工业无损评价领域中兴起.自一九四六年发现核磁共振现象以来,NMR波谱学已成为物质形式的分析、结构研究和动态研究的方法.由于它分辨率高,已成为生化分析不可缺少的手段.本文将从NMR成像的基本原理,典型装置的组成,图像信号的特点和处理技术以及应用前景等加以介绍,以便进一步理解所得图像的含义,充分发挥NMR-CT的图像功能.
1. INTRODUCTION NUCLEAR MAGNETIC RESONANCE, abbreviated NMR, is emerging as an imaging method in the field of medical diagnostics and industrial non-destructive evaluation. Since the discovery of the NMR phenomenon in 1946, NMR spectroscopy has become a substance Formal analysis, structural research and dynamic research methods.Because of its high resolution, it has become an indispensable means of biochemical analysis.Based on the basic principles of NMR imaging, the composition of typical devices, the characteristics of image signals and processing techniques and applications Prospects, etc. to be introduced in order to further understand the meaning of the resulting image, give full play to the image function of NMR-CT.