超声对150例甲状腺微小癌的诊断分析

The diagnostic value of ultrasonography on thyroid carcinoma

目的分析甲状腺微小癌的声像图特点,探讨超声在诊断甲状腺微小癌中的价值。方法回顾性分析经手术和病理证实的150例甲状腺微小癌患者的206个甲状腺微小癌结节的超声表现,包括结节内部回声、边界、形态、血流及内部钙化及钙化大小、分布及类型,与同期经病理证实的82个良性结节(直径小于或等于1cm)的超声特征进行对比分析。结果在实性低回声、微小钙化、纵横比大于或等于1、丰富血流及颈部淋巴结肿大方面甲状腺微小癌均明显高于甲状腺良性结节,差异有统计学意义(P<0.05)。甲状腺微小癌二维超声声像图多表现为实性低回声、形态不规则,纵横比大于或等于1、内部多为微小钙化、边缘模糊及周边小毛刺;彩色多普勒血流显像,结节较大者血供较丰富,分布不规则,结节较小者血流不丰富。结论二维及彩色多普勒超声对甲状腺微小癌诊断有重要的临床价值。

Objective To evaluate the diagnostic value of ultrasonography on thyroid microcarcinoma,and to find out its sono- graphic characteristics. Methods Ultrasound performance of 206 thyroid microcarcinoma nodules in 150 patients confirmed by sur- gery and pathology were retrospectively analyzed,nodules internal echo, boundary, the shape, the blood flow and internal calcifica tion and calcification size,distribution and type were observed and compared with 82 benign nodules（diameter ≤1 cm）. Results In terms of solid low echo, miniealcification, aspect ratio≥1, rich blood flow and neck lymph node enlargement, thyroid microcarcinoma were significantly higher than that of thyroid benign nodules（P〈0.05）. Ultrasonographic performance of thyroid microcarcinoma often presented as solid low echo, irregular form, aspect ratio ≥ 1,internal mostly small calcification, edge blur and the surrounding small burrs. Color doppler blood flow showed that, blood supply was rich in patients with strong nodules, distribution was irregular, smaller nodules blood flow was not rich. Conclusion The two-dimensional and color doppler flow imaging（cdfi） might be has a im- portand value on thyroid microcarcinoma diagnosis.