[磁共振断层扫描中加权函数的实验测定]
[Experimental determination of weighting functions in magnetic resonance tomography].
作者信息
Schmidt D, Schnackenburg B
机构信息
Institut für Röntgendiagnostik, Bereich Medizin (Charité), Humboldt-Universität zu Berlin/DDR.
出版信息
Rofo. 1989 Jul;151(1):97-102. doi: 10.1055/s-2008-1047137.
Weighting functions are defined and calculated for the pulse sequences spin-echo and inversion recovery. These weighting functions make possible a qualitative discussion of the term "weighting" in MR imaging. Furthermore, a new method has been developed to determine weighting functions experimentally. A comparison between the results obtained and the theoretical predictions shows a sufficiently good agreement. This method can also be applied with other pulse sequences.
为自旋回波和反转恢复脉冲序列定义并计算了加权函数。这些加权函数使得在磁共振成像中对“加权”这一术语进行定性讨论成为可能。此外，还开发了一种通过实验确定加权函数的新方法。将所得结果与理论预测进行比较，结果显示出足够好的一致性。该方法也可应用于其他脉冲序列。
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