Objective To explore the value of high frequency ultrasonography in screening thyroid nodule in healthy physical examination. Methods Among 1172 normal healthy subjects, the shape, internal echo, blood flow of thyroid glands and existence of nodules were examined by high frequency ultrasonography, the location, numher, shape, size, boundary,internal echo and blood flow of nodules were observed. Whether there were enlarged lymph nodes around the cervical blood vessels were also observed. Then the results were analyzed. Results In 1172 suhjects, there were 443 patients with 805 thyroid nodules detected by ultrasonography, the diameter was 2.2 ～ 14. 6 mm. There were 492 nodules with solid echo (492/805 ,61. 1％ ) ,261 nodules with mixed echo ( 261/805 ,32. 4％ ) , 52 nodules without echo ( 52/805 , 6. 5％) . No enlarged lymph node was detected by ultrasonography, color Doppler ultrasound showed 781 thyroid nodules without or with few blood flow signals,24 thyroid nodules with abundant blood flow. Conclusion High frequency ultrasonography can be applied for screening thyroid diseases without clinical symptoms, which has important clinical value.%目的 探讨高频超声在健康体检中对甲状腺结节的筛选价值.方法 应用高频超声检查1172例健康体检者甲状腺,观察甲状腺形态、内部回声、整个腺体血流情况,以及有无结节及结节的部位、数目、形态、大小、边界、内部回声和血流等;同时观察颈部血管旁有无形态肿大的淋巴结等.对可疑病例建立健康档案,综合分析检查结果.结果 1172例中,超声筛查出443例(37.8%)受检者有805个甲状腺结节,结节直径约2.2~14.6 mm.结节回声表现为实质性回声者492个,占61.1%;囊实混合回声者261个,占32.4%;无回声者52个,占6.5%.超声在所有受检者中均未发现颈血管旁肿大淋巴结;彩色多普勒显示甲状腺结节无血流信号或仅有少许血流信号者781个,血流较丰富者24个.结论 应用高频超声可对临床无症状的甲状腺疾病进行筛查,具有重要的临床价值.
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