彩色多普勒超声诊断亚急性甲状腺炎

目的 探讨彩色多普勒超声在亚急性甲状腺炎(SAT)诊断中的应用价值.方法 对68例确诊的SAT患者的超声图像进行回顾性分析,并与同期病理证实的30例甲状腺乳头状癌患者的声像图特征进行对比分析.结果 68例SAT超声表现为甲状腺内不同范围的回声减低区:弥漫型40例(58.82%,40/68),局限型28例(41.18%,28/68).回声减低区内彩色血流信号较正常甲状腺实质丰富.52例(76.47%,52/68)病变局部探头加压后甲状腺部位有压痛.将局限型SAT与30例甲状腺乳头状癌的声像图进行对比,二者病变均表现为形态不规则,与周围边界不清;在病变内出现多发点状钙化及动脉血流阻力指数(RI)的比较中,二者差异有统计学意义(P＜0.05).结论 SAT的彩色多普勒超声声像图有一定的特征,对临床有较强的辅助诊断价值.

Color Doppler ultrasonographic diagnosis of subacute thyroiditis

Objective To assess the value of color Doppler ultrasonogarphy in the diagnosis of subacute thyroiditis (SAT). Methods Sixty-eight patients of SAT and 30 patients with thyroid papillary carcinoma were included, and their imaging features were retrospectively reviewed. Results All the patients with SAT had either focal or diffuse hypoechogenicity of the thyroid lobes with rich blood supplying in the diseased region, among them 52 patients (76.47%, 52/68) had tenderness on palpation. Diffuse and focal lesions were found in 40 (58.82%, 40/68) and 28 patients (41.18%, 28/68). The boundary and shape of focal lesions had no diagnostic characteristics compared with those of thyroid papillary carcinoma. Punctate calcification and resistance index (RI) in the nodule were significant different between the SAT and thyroid papillary carcinoma (P<0.05). Conclusion Color Doppler ultrasonography can display the features of SAT and is an effective method for the diagnosis of SAT.