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Sonographic Reference Ranges for the Thyroid Gland in Euthyroid Term Newborns
Aleksandra Mikołajczak1, Maria Katarzyna Borszewska-Kornacka1, Renata Bokiniec1
1Department of Neonatal and Intensive Neonatal Care, Medical University, Warsaw, Poland.
American Journal of Perinatology
|May 30, 2015
Summary
This study establishes normal thyroid gland reference ranges for Polish newborns using ultrasound. These findings are crucial for diagnosing thyroid conditions in infants and highlight population-specific variations.
Area of Science:
- Neonatal Medicine
- Pediatric Endocrinology
- Medical Imaging
Background:
- Accurate assessment of thyroid gland size is vital for diagnosing neonatal thyroid disorders.
- Establishing population-specific reference ranges is essential for accurate interpretation of thyroid measurements.
Purpose of the Study:
- To determine reference ranges for thyroid gland dimensions (length, width, depth, volume) in healthy, term Polish neonates.
- To provide normative data for the comparative evaluation of infants with suspected thyroid disease.
Main Methods:
- Ultrasound examinations were performed on 148 healthy term neonates within their first week of life.
- Measurements included longitudinal and transverse projections to assess thyroid lobe dimensions and volume.
- Percentile charts were created for thyroid volume in the study population.
Main Results:
- Median thyroid lobe dimensions and volumes were recorded for right, left, and combined lobes.
- Specific median values (ranges) for width, depth, length, and volume were established for Polish neonates.
- Thyroid volume ranged from 0.526 to 1.849 mL for both lobes combined.
Conclusions:
- Diagnostic ultrasound is a simple, effective tool for assessing thyroid health in neonates.
- The study provides essential normative data for Polish newborns.
- Observed differences in reference ranges compared to other populations underscore the need for population-specific data.
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