Value of shear wave elastography by virtual touch tissue imaging quantification in patients with diffuse thyroid...

Area of Science:

• Medical Imaging
• Endocrinology
• Diagnostic Ultrasound

Background:

• Diffuse thyroid gland pathologies, including Graves' disease and Hashimoto's thyroiditis, present diagnostic challenges.
• Conventional ultrasonography is standard, but differentiating these conditions can be difficult.
• Advanced imaging techniques are needed to improve diagnostic accuracy.

Purpose of the Study:

• To evaluate the diagnostic accuracy of shear wave elastography (SWE) using virtual touch tissue imaging quantification (VTIQ) in diffuse thyroid diseases.
• To differentiate Graves' disease from Hashimoto's thyroiditis using VTIQ.
• To compare SWE measurements between patients and healthy controls.

Main Methods:

• Conventional ultrasonography and VTIQ were performed on 30 patients with Hashimoto's thyroiditis, 22 with Graves' disease, and 30 healthy controls.
• Ten elastographic measurements were taken from each thyroid lobe in all participants.
• Mean shear wave velocity (m/s) was calculated and compared across groups.

Main Results:

• Mean SWE was significantly lower in controls (1.92 m/s) compared to Graves' disease patients (2.71 m/s) and Hashimoto's thyroiditis patients (2.50 m/s).
• Patients with Graves' disease exhibited significantly higher SWE than those with Hashimoto's thyroiditis (P < 0.001).
• VTIQ demonstrated significant differences in thyroid stiffness between all groups.

Conclusions:

• Shear wave elastography with VTIQ can effectively distinguish normal thyroid glands from diffuse thyroid pathologies.
• VTIQ shows promise as an adjunctive tool for diagnosing Graves' disease and Hashimoto's thyroiditis.
• This technique may enhance the non-invasive diagnosis of common diffuse thyroid conditions.