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首页> 外文期刊>Вестник офтальмологии >Magnetic resonance imaging of the orbital portion of the optic nerve at different stages of papilledema
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Magnetic resonance imaging of the orbital portion of the optic nerve at different stages of papilledema

机译：乳头肿瘤不同阶段的视神经轨道部分的磁共振成像

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High-resolution magnetic resonance image makes it possible to examine the radiological anatomy of the orbital portion of the optic nerve in patients with papilledema. The longitudinal diameters of the orbital portion of the optic nerve and its subarachnoidal space were measured on coronal images just behind the eyeball, in the middle of the latter and the orbital apex, and at the orbital apex in 10 healthy volunteers and 20 patients with papilledema. In patients with papilledema, the diameter of the subarachnoidal space of the optic nerve was increased as compared with that in the control group. In its moderate form, that of the optic nerve was significantly increased as compared to the control group. In patients with severe papilledema and secondary atrophy, the diameter of the optic nerve just behind the eyeball was significantly less than that in patients with moderate papilledema. It may be suggested that elevated intracranial pressure leads to the dilated subarachnoidal space of the optic nerve. The clinical and X-ray signs of atrophy of the optic nerve are detectable in patients with severe papilledema and secondary atrophy.
机译：高分辨率磁共振图像使得可以检查乳头肿瘤患者的视神经轨道部分的放射性解剖学。视神经和蛛网膜下腔的轨道部分的纵向直径在后面的眼球，在后者和眶尖的中间，以及10名健康志愿者和20名乳头牛皮膜患者的轨道顶点。在乳头肿瘤患者中，与对照组相比，视神经的蛛网膜膜圆形空间的直径增加。在其中等形式中，与对照组相比，视神经中的视神经显着增加。在患有严重乳头肿瘤和次级萎缩的患者中，眼球后面的视神经直径明显低于中度乳头牛的患者。可能表明颅内压升高导致视神经的扩张蛛网膜形空间。患有视神经萎缩的临床和X射线迹象可检测到严重的乳头肿瘤和次级萎缩患者。

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