CT扫描对Graves眼病的诊断价值

目的　探讨CT扫描在Graves眼病诊断的意义。方法　回顾性分析 3 7例经临床证实的Graves眼病轴位及冠状位CT资料以及临床资料。结果　 3 7例Graves眼病CT观察 ,Ⅰ度突眼 3 1例 (83 .78% ) ,Ⅱ度突眼 2例 (5 .41% ) ,无突眼 4例 (10 .81% )。双侧眼外肌受累 3 0例 (81.0 8% ) ,单侧眼外肌受累 3例 (8.11% ) ,无眼外肌受累 4例(10 .81% )。其中内直肌增粗 63条 ,下直肌增粗 5 3条 ,上直肌增粗 44条 ,外直肌增粗 3 4条。眶尖密度增高 7侧 ,泪腺增大 5侧 ,视神经增粗 5侧 ,眼睑肿胀 6侧。CT增强检查 2 6例 ,均呈轻、中度强化。结论　冠状位及轴位CT扫描可作为Graves眼病诊断的重要依据 ,并能判断突眼程度及眼外肌受累程度 ,为临床诊断与治疗提供可靠依据

Diagnostic value of CT scan in Graves orbital disease

Objective To evaluate the significance of CT scan in the diagnosis of Graves orbital disease.Methods Axial and coronal CT findings and clinical materials in 37 patients with Graves orbital disease were analyzed retrospectively.Results The exophthalmos of Ⅰ degree was 83.78%(31/37), Ⅱ degree was 5.41%(2/37),and non exophthalmos was 10.81%(4/37), involvement of bilateral extraocular muscles and single side extraocular muscles was 8.11% respectively,and 4 patients extraocular muscles have not been involved(10.81%).Thickening of medial rectus muscle(n=63), inferior rectus muscle(n=53), superior rectus muscle(n=44) and lateral rectus muscle(n=34) was found. Increase of density in the orbital apex(n=5), swelling of lacrimal gland(n=5), thickening of optic nerve(n=5) and swelling of the eyelid (n=6) were found; The lightly to moderate enhancement in all of 26 patients with contrast CT.Conclusion The coronal and axial CT scan can play an important role in the diagnosis of Groves orbital disease, and they can estimate extent of exophthalmos and involve of extraocular muscles for clinical diagnosis and therapy.