高频超声与磁共振对巨细胞颞动脉炎的诊断价值

Diagnosis value of high frequency ultrasonography and MRI in giant cell arteritis

目的探讨高频超声与磁共振对巨细胞颞动脉炎的诊断价值。方法收集29例经活检证实为巨细胞颞动脉炎患者，其中29例患者均行高频超声检查，11例行磁共振检查，观察颞动脉管壁及血管内径，与颞动脉病理组织学进行对照分析。同时随机选择30例健康志愿者作为对照组，对正常颞动脉高频超声表现进行分析。结果所有颞动脉高频超声与磁共振均能清晰显示，29例患者中高频超声诊断27例，诊断符合率约93．1％。11例磁共振检查均提示巨细胞颞动脉炎，诊断符合率约100％。巨细胞颞动脉炎患者高频超声与磁振检查均显示为血管壁增厚，回声减低，管腔内径变窄，部分患者内可见实性团状回声充填，内无血流信号显示，磁共振强化扫描显示颞动脉血管壁强化。结论高频超声与磁共振对于巨细胞颞动脉炎的诊断具有较高的准确率，对于临床的治疗具有重要的意义。

Objective To study the diagnosis value of giant cell temporal arteritis with high frequency ultrasonography and magnetic resonance imaging. Methods The total of 29 cases testified as giant cell temporal arteritis clinically were assessed by high frequency ultrasonography and magnetic resonance imaging. The 29 cases were assessed by high frequency ultrasonography, the 11 cases were assessed by magnetic resonance imaging,mural thickness and lumen diameter of temporal arteries were examined, and were compared with the biopsy specimens. Meanwhile 30 healthy volunteers were randomly selected as control group,the ultrasonography of normal temporal arteries were analyzed. Results All temporal arteries were diaplayed clearly. 27 cases were diagnosed for giant cell temopral arteritis by high frequency ultrasonography in 29 cases,the diagnostic accuracy was 93.1%. The 11 cases were diagnosed by magnetic resonance imaging, the diagnostic accuracy was 100~. The imaging features were mural thickness, the lumen stenosis, and partial temporal arteries occluded, the mural was contrasted by Gd-DTPA. Conclusions High frequency ultrasonography and magnetic resonance imaging are noninvasive methods for giant cell temporal arteritis diagnosis,it is important clinical value for therapy.