Thyroid isthmus thickness in prepubertal healthy children in an iodine-sufficient region

Area of Science:

• Pediatric Endocrinology
• Diagnostic Imaging
• Ultrasound Technology

Background:

• Thyroid isthmus thickness is a key ultrasound parameter for diagnosing diffuse thyroid diseases.
• Limited reference data exists for thyroid isthmus thickness in healthy prepubertal children.
• Accurate reference values are crucial for interpreting pediatric thyroid ultrasound findings.

Purpose of the Study:

• To determine and present reference values for thyroid isthmus thickness in healthy, prepubertal children.
• To provide a basis for the diagnostic evaluation of thyroid conditions in pediatric populations.
• To address the lack of existing literature on pediatric thyroid isthmus dimensions.

Main Methods:

• Ultrasound examinations of the thyroid were performed on 402 healthy children (214 boys, 188 girls) aged 7-12 years.
• The study focused on a cohort of children from a seaside region.
• Measurements of thyroid isthmus depth were systematically recorded.

Main Results:

• Reference values for thyroid isthmus depth were established for different age groups and sexes.
• Maximum proposed isthmus depth values range from 2.6 mm to 3.5 mm.
• Values for boys: 2.6 mm (7-9 years) to 3.3 mm (10-12 years).
• Values for girls: 2.7 mm (7-9 years) to 3.5 mm (10-12 years).

Conclusions:

• The study provides essential reference standards for thyroid isthmus thickness in healthy prepubertal children.
• These reference values are valuable for the diagnostic process and monitoring of pediatric thyroid diseases.
• Ultrasound evaluation of the thyroid isthmus is a useful tool in pediatric endocrinology.