Multifactor Analysis of Thyroid Stiffness in Graves Disease: A Preliminary Study

AJR. American Journal of Roentgenology
Shimei LiHui Zhi

Abstract

The aim of this study was to evaluate the value of shear wave elastography (SWE) in Graves disease (GD) and to identify the potential factors influencing thyroid stiffness. A total of 207 subjects were enrolled and underwent SWE examination in the study, including 162 patients with GD and 45 healthy volunteers with normal thyroids, matched for age and sex. For all subjects, five measurements of elastic modulus values (SWE mean, SWE minimum, and SWE maximum of a 9-mm ROI) were performed on each thyroid lobe, and a mean value was calculated. The indicators including free three-triiodothyronine (FT3), free thyroxine (FT4), thyroid-stimulating hormone (TSH), thyroid size, isthmus thickness, anti-thyroid peroxidase (TPO) antibodies (Abs), and antithyroglobulin (TG) Abs were detected in the 162 patients with GD, among whom 88 patients underwent initial TSH receptor (TR) Ab examination. The elastic modulus values for patient with GD were significantly higher than those for healthy control subjects. The ROC AUC values for GD by SWE mean was 0.656, and the cutoff value was 15.45 kPa. The sensitivity and specificity were 56.8% and 71.1%, respectively. The duration of disease, thyroid size, isthmus thickness, and levels of TPO Ab, TG Ab, ...Continue Reading

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Citations

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