甲状腺相关性眼病眼球突出CT影像分析

CT Imaging Analysis of Exophthalmos in Thyroid-associated Ophthalmopathy

目的探讨甲状腺相关性眼病眼球突出时眼外肌肥厚、眶脂肪增多等相关性CT影像学分析。方法回顾性分析58例甲状腺相关性眼病CT影像资料，男22例，女36例，行横轴位和冠状位检查，层厚和层距2mm。结果58例甲状腺相关性眼病眼球突出CT影像观察，单纯眼外肌肌腹肥厚（n=54），肌腹及肌腱、肌止点均受累及（n=3）；眶脂肪增多（n=16）；眼外肌肥厚伴眼上静脉增粗（n=3）；眼外肌肥大伴视神经增粗（n=1）；眼肌肥大伴泪腺增大（n=2）；眼睑肿胀（n=39）。结论在对甲状腺相关性眼病眼球突出的研究中眼外肌、眼眶脂肪容积的改变都应加以考虑；CT对该病的诊断具有重要的价值。

Objective To CT imaging correlate analysis of exophthalmos with the thickening extraocular muscle and orbital lipotrophy in thyroid-associated ophthalmopathy （TAO）.Methods CT imaging data in 58 patients with TAO were retrospectively analyzed .These patients included male 22 and female 36 were proformed with 2mm thick slice axial or coronal plane .Results 58 patients with exophthalmos in TAO were studied by CT imaging. 54 patients with extraocular muscles thickening and 3 patients with tendon involvement .16 patients with orbital lipotrophy .3 patients extraocular muscles thickening accompany by superior ophthalmic vein enlargement.lpatients extraocular muscles thickening accompany by optic never thickening .2 patients extraocular muscles thickening accompany by lacrimal gland augmentation .39patients with eyelid swelling. Conclusion For studying exophthalmos in YAO, the changes of ocular muscles and fatty tissue volume should be taken into consideration. CT findings are valuable for the diagnosis.