Conclusion Ultrasonography of high quality can show the sandy body and definition of the edge so clearly as to increase the diagnostic rate of thyroid microcarcinoma.

• 结论高性能超声可提高甲状腺微小癌砂粒体的检出率及结节周边细小毛刺的清晰度,提高结节内彩色血流的敏感度,从而提高甲状腺微小癌的诊断率。