核磁共振成象这门在医学和生物学上非常有潜在力的诊断新技术,现已引起世界各国科学家们的关注,国外医学界把七十年代中期称作“X-CT热”,而把今天称作核磁共振成象“狂暴时期”。医学专家们预言:核磁共振成象技术使人类对疾病的认识和预防能力大大前进一步,为疾病的诊断和早期发现开辟了光明的前景. 磁体是核磁共振成象装置中的重要组成部分,而其磁场强度则是核磁共振成象质量的关 Magnetic resonance imaging, a medically and biologically very diagnostic new technology, has drawn the attention of scientists from all over the world. The foreign medical community called the mid-1970s “X-CT fever” Today called MRI “violent period.” Medical experts predict that magnetic resonance imaging technology will greatly advance human’s ability to recognize and prevent diseases and open up a bright future for the diagnosis and early detection of diseases. Magnets are an important part of MRI equipment and Its magnetic field strength is the quality of NMR imaging