3D-CISS序列在显示动眼神经脑池段及其毗邻结构的价值

3D-CISS sequence in displaying the cisternal segment of oculomotor nerve and its adjacent relationships

目的应用3D-CISS序列对脑池段动眼神经的毗邻结构进行显示与研究,为临床获得详尽的MR影像解剖资料。方法17例动眼神经麻痹患者和1例术前了解动眼神经是否受侵的肿瘤患者均行常规SE序列及3D-CISS序列扫描,利用多平面重组(MPR)技术从不同角度观测动眼神经的毗邻结构以及神经与肿瘤的毗邻关系。结果17例动眼神经麻痹患者的毗邻结构均得以清楚显示,其中15例显示血管压迫,1例显示颅咽管瘤造成的压迫,1例为桥前池内肿瘤造成的压迫,另1例术前病人的观察结果显示神经没有受侵。结论3D-CISS序列结合MPR技术能够准确显示动眼神经的毗邻关系,具有重要的临床意义。

Objective To obtain the detailed anatomical data of image for clinic through application of 3D-CISS sequence in displaying the cisternal segment of the oculomotor nerve and its adjacent relationships. Methods Seventeen patients with palsy of oculomotor nerve and 1 patient with tumor being to know whether the oculomotor nerve were eroded or not before operation underwent routine SE and 3D-CISS sequences, the adjacent neurovascular relationships of oculomotor nerve and the syntopy of the oculomotor nerve to its related pathological changes were observed from the different angles on multi-planar reconstruction （MPR） images. Results Seventeen patients with palsy of oculomotor nerve were all displayed well, among them 15 were pressed by the artery, 1 by craniopharyngioma, 1 by the tumor in the pontine cistern; the oculomotor nerves of another patient before the operation were not invaded by the tumor. Conclusion 3D-CISS sequence and MPR technique are the optimal imaging methods for the display of the syntopy of the oculomotor nerve to its related organization.