Semmler W, Felix R
Rofo. 1984 Sep;141(3):259-67. doi: 10.1055/s-2008-1053131.
It has been shown that signal strength from nuclear resonance and grey scale in NMR depend on pulse sequence, pulse repetition interval, delay time, tissue-dependent parameters, such as relaxation times T1 and T2, proton density, and flow movements. The relative grey scales for tissues using varying pulse sequences can be predicted mathematically. These relationships are shown graphically to indicate to the user the effect of pulse repetition, processing time and T1 and T2.
业已表明，核磁共振中的核共振信号强度和灰度取决于脉冲序列、脉冲重复间隔、延迟时间、组织相关参数，如弛豫时间T1和T2、质子密度以及血流运动。使用不同脉冲序列时组织的相对灰度可以通过数学方法预测。这些关系以图形方式展示，向用户表明脉冲重复、处理时间以及T1和T2的影响。
