Roles of ultrasound and power Doppler ultrasound for diagnosis of Hashimoto thyroiditis in anti-thyroid marker-positive euthyroid subjects

Quantitative Imaging in Medicine and Surgery

Serkan Yener²  Isin Ceylan¹  Mustafa Secil¹  Firat Bayraktar² 

[1] Department of Radiology, Dokuz Eylul University, Faculty of Medicine, Izmir 35340, Turkey;;Division of Endocrinology of Metabolism, Department of Internal Medicine, Dokuz Eylul University Medical School, Inciralti, Izmir, Turkey

关键词: Doppler ultrasound;    Hashimoto’s thyroiditis (HT);    thyroid nodules;    thyroid ultrasound;   

DOI  :  10.3978/j.issn.2223-4292.2014.07.13

学科分类：外科医学

来源: AME Publications

【 摘 要 】

Purpose: The present study was performed to investigate the contribution of ultrasonographic (US) findings to diagnosis in anti-thyroid marker-positive patients with normal hormone levels among euthyroid subjects with Hashimoto’s thyroiditis (HT).

Methods: Forty premenopausal euthyroid patients with a median age of 32 years (range, 20-44 years) with normal levels of free triiodothyronine (FT3) and free thyroxine (FT4), and elevated anti-thyroid peroxidase (TPO) antibodies were enrolled in this study. A control group of 46 healthy individuals with a median age of 29 years (range, 18-43 years) was composed of randomly selected volunteers. The examinations included basic morphometric (measurement of thyroid gland dimensions in three axes, the volume of each thyroid lobe, and the total thyroid volume), morphological grayscale imaging (echogenicity, nodularity, septations, undulation of the margins, and reactive lymph nodes), and thyroid gland vascularity.

Results: There were no statistically significant differences in morphometric parameters of the thyroid gland between the study and control groups. There were significant differences in the presence of nodularity, undulation of the gland margins, septations inside the glands, infrathyroidal and/or pretracheal reactive lymph nodes, and increased vascularity on power Doppler imaging between the groups. The use of all parameters together yielded a sensitivity of 90%, specificity of 84.8%, positive predictive value (PPV) of 83.7%, negative predictive value (NPV) of 90.7%, and accuracy of 87.2% for diagnosis of HT.

Conclusions: US and power Doppler US are helpful for the diagnosis of HT in anti-thyroid marker-positive patients with normal thyroid hormone levels.

【 授权许可】

Unknown