方法：对54例AION患者及同期进行健康体检者54例作为对照组，应用彩色超声诊断仪检测颈动脉超声影像学特征变化。

结果：AION患者54例中38例出现颈动脉粥样硬化病变，占接受该项检查总数的70%，其中硬斑18例(33%)，软斑13例(24%)，混合斑7例(13%)； 对照组中检出粥样硬化20例，占接受该项检查总数的37%，其中硬斑12例(22%)，软斑5例(9%)，混合斑3例(6%)； 均未见颈动脉狭窄及明显流速改变。AION患者组与对照组粥样硬化斑块的例数比较，差异有统计学意义(χ²=12.836，P=0.005)

结论：AION的发生与颈动脉粥样硬化有相关性，颈动脉超声检查对查找AION的病因及诊断有重要的价值。

METHODS:Fifty-four cases of AION patients and 54 cases of healthy control were observed, atherosclerotic spots were detected by the application of color ultrasound.

RESULTS:In AION group of 54 patients, 38 cases appeared carotid atherosclerosis, accounting for 70%. The number of cases with hard plaque, soft plaque and mixed plaques were 18, 13, and 7 respectively, accounting for 33%, 24% and 13%. In the control group, 20 cases were detected atherosclerotic change, accounting for 37%. And the number of cases with hard plaque, soft plaque and mixed plaques were 12, 5 and 3 respectively, accounting for 22%, 9%, 6%. Significant stenosis and velocity change were showed in neither AION group nor control group. Compared with the control group, AION group had more cases of atherosclerotic plaque, the difference was statistically significant(χ²=12.836, P=0.005)

CONCLUSION: The incidence of AION is correlated with carotid atherosclerosis, and carotid ultrasonography is significantly valuable for AION etiology and diagnosis.