通过正常颅脑CT扫描图像，对枕骨蛛网膜颗粒压迹进行研究。
To study the depression of occipital arachnoid granulation by normal CT scans.
方法回顾性分析38例典型颅骨蛛网膜颗粒压迹MR I影像特点。
Methods The MRI characteristics of 38 cases of typical bone Pacchionian depression were retrospectively analyzed.
应用内窥镜研究窦腔内纤维索结构、蛛网膜颗粒及窦汇区的原始结构特征；
Endoscopes were inserted into the lumen of the sinus to observe the structures of chordae.
结论蛛网膜颗粒是一种正常解剖结构，通常与临床表现无关，有影像学特征表现。
Conclusion Arachnoid granulation is a kind of normal structure. It has no correction with clinical manifestation. It has characteristics of imaging.
结论蛛网膜颗粒是一种正常解剖结构，通常与临床表现无关，有影像学特征表现。
Conclusion Arachnoid granulation is a kind of normal structure. It has no correction with clinical manifestation. It has characteristics of imaging.
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