Luoma K, Raininko R, Nummi P, Luukkonen R
Department of Radiology, University of Helsinki, Finland.
Magn Reson Imaging. 1993;11(4):549-55. doi: 10.1016/0730-725x(93)90474-r.
The signal intensity of cerebrospinal fluid (CSF) was studied by measuring the intensity of nine samples of CSF using various routine pulse sequences with 1.0 T and 0.1 T magnetic resonance imagers. The observed signal intensity differences between the CSF samples were small, as were the differences between the CSF samples and distilled water, although two of the samples were pathological with an elevated protein content. Signal intensity did not correlate with the protein content, and the location of the sample in the coil (head coils were used) caused more variation in the results than did the composition of the sample. The same results were obtained with both imagers. Our results suggest that CSF may be suitable for an intensity reference in routine patient studies in regions where the flow and pulsatile movement of CSF are slow enough not to affect the signal intensity, but further studies are needed to determine such regions in the CSF system.
通过使用1.0 T和0.1 T磁共振成像仪的各种常规脉冲序列测量九个脑脊液（CSF）样本的强度，研究了脑脊液的信号强度。尽管其中两个样本为病理性样本，蛋白质含量升高，但观察到的脑脊液样本之间的信号强度差异很小，脑脊液样本与蒸馏水之间的差异也很小。信号强度与蛋白质含量无关，并且样本在线圈中的位置（使用头部线圈）比样本组成导致的结果变化更大。两台成像仪均获得了相同的结果。我们的结果表明，在脑脊液流动和搏动运动足够缓慢以至于不影响信号强度的区域，脑脊液可能适用于常规患者研究中的强度参考，但需要进一步研究以确定脑脊液系统中的此类区域。
