[Thyroid ultrasonography--considerations and progress in routine diagnostic examinations].

Area of Science:

• Radiology
• Endocrinology
• Medical Imaging

Background:

• Thyroid ultrasonography is a crucial, non-invasive imaging modality.
• It surpasses CT and MRI in providing detailed thyroid information.
• It aids in diagnosing diffuse goiter, thyrotoxicosis, and thyroid nodules.

Purpose of the Study:

• To highlight the advancements and diagnostic capabilities of thyroid ultrasonography.
• To discuss the role of B-mode and Doppler imaging in thyroid nodule assessment.
• To explore emerging technologies like 3D imaging and tissue elastography.

Main Methods:

• Utilizing B-mode and color Doppler imaging for evaluating internal echo levels and blood flow.
• Applying new diagnostic criteria for thyroid nodules and aspiration biopsy selection.
• Incorporating advanced techniques such as 3D ultrasonography, contrast agents, and tissue elasticity imaging.

Main Results:

• Ultrasonography effectively infers causes of diffuse goiter and thyrotoxicosis.
• Specific B-mode findings (irregular shape, indistinct border, inhomogeneous echo, calcification) suggest malignancy.
• 3D imaging and contrast agents improve vascular visualization; tissue elastography objectively assesses stiffness.

Conclusions:

• Thyroid ultrasonography is vital for diagnosing various thyroid conditions.
• Tissue elastography shows promise in differentiating benign and malignant thyroid lesions, particularly follicular adenomas and carcinomas.
• Ongoing developments in imaging combinations aim to further refine diagnostic accuracy and treatment monitoring.