This study aims to verify the clinical value of thyroid ultrasound with microvascular flow imaging in thyrotoxic patients for differential diagnosis between hyperthyroidism and thyroiditis. We intend to use the RS85 Ultrasound device manufactured by Samsung Medison. Graves' disease and painless thyroiditis/subacute thyroiditis are the main cause of thyrotoxicosis. Precise discrimination between Graves' disease and painless thyroiditis/subacute thyroiditis is clinically very important in determining treatment methods, such as the prescription of antithyroid drugs. Primary endpoint was to verify the value of vascularity index, defined by Blood pixel in range of image / Total pixel in range of image .Seondary endpoint was to verify the superiority value of Microvascular flow imaging to discriminate thyrotoxicosis patients compared with Color doppler/ Power doppler ultrasound imaging and conventional ultrasound imaging.
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The optimal value of vascular index for differentiating the thyrotoxicosis reason
Timeframe: 12 months