CAJ | 학술논문

目的：通过兔视神经大体解剖与磁共振影像的对比，探讨兔视神经磁共振成像效果，为视神经病变的磁共振诊断提供实验依据。方法：采用3．0 T磁共振仪对12只正常兔视神经进行高分辨磁共振扫描和Mn2＋增强扫描，并与兔视神经大体解剖进行对照分析，观察视神经的扫描效果。结果：兔视神经自眼球后极部发出后呈水平方向走行，双侧视神经眶内段夹角约为135．5°，在接近颅脑中轴线部位双侧视神经并行后形成视交叉。高分辨磁共振能够清晰显示兔视神经各段的解剖结构，Mn2＋增强能够全程显示视神经走行、视交叉、外侧膝状体及上丘结构。结论：磁共振能够清晰显示兔眼视神经的走形及解剖结构，与大体解剖具有良好的一致性。
목적：통과토시신경대체해부여자공진영상적대비，탐토토시신경자공진성상효과，위시신경병변적자공진진단제공실험의거。방법：채용3．0 T자공진의대12지정상토시신경진행고분변자공진소묘화Mn2＋증강소묘，병여토시신경대체해부진행대조분석，관찰시신경적소묘효과。결과：토시신경자안구후겁부발출후정수평방향주행，쌍측시신경광내단협각약위135．5°，재접근로뇌중축선부위쌍측시신경병행후형성시교차。고분변자공진능구청석현시토시신경각단적해부결구，Mn2＋증강능구전정현시시신경주행、시교차、외측슬상체급상구결구。결론：자공진능구청석현시토안시신경적주형급해부결구，여대체해부구유량호적일치성。
Aim:To observe the feasibility of MRI of rabbit optic nerve by comparing with the gross anatomy .Meth-ods:Twelve rabbit optic nerves underwent high resolution scan and manganese enhanced scan by MRI with 3.0 Tesla sys-tem.The results of MRI were compared with the gross anatomy of rabbit optic nerve .Results:The optic nerve of rabbit e-merged from the posterior surface of the global , traveled horizontally in intraorbital segment with the angle 135.5°between bilateral optic nerves , paralleled in intracranial segment , and formed the optic chiasma .MRI with high-resolution could display the anatomical structures of rabbit optic nerve .Mn2+enhanced scan could clearly reveal the optic nerve , optic chi-asma, lateral geniculate body and superior colliculus .Conclusion: MRI with high-resolution well displays the shape of rabbit optic nerve , which fits with the gross anatomy .