以下是引用威廉在2006-2-14 23:55:20的发言:
不用那么专业……说扫描就好……磁核共振,好像怎么D了似的 [em06]
为什么NMR和MRI国内都翻译成核磁共振?
NMR = Nuclear Magnetic Resonance is the resonance that occurs when a nucleus (usually hydrogen, but any nucleus that has non-zero spin will work) is placed in a magnetic field and is 'swept' by a radio frequency that causes the nuclei to 'flip'. This causes the radio frequency to be absorbed, which is what is measured.
MRI = Magnetic Resonance Imaging is a more complex application of NMR in which the geometric source of the resonances are detected and deconvoluted by Fourier transform analysis.