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| Sonographic Measurement of Normal Thyroid Gland in the Neonates |
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| Gwun Jeon Gwun Jeon, M.D., Ji Hoon Shin, M.D., Hyun Sook Hong, M.D.,Jung Hoon Kim, M.D., Jung Hwa Hwang, M.D., Dong Erk Goo, M.D.,Deuk Lin Choi, M.D., Seung Boo |
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| Department of Radiology, College of Medicine, Soonchunhyang University *Department of Radiology, Hanseo College Hospital |
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| PURPOSE : The purpose of this study was to establish the sonographic measurement of normal thyroid gland in the
neonates.
MATERIALS and METHODS : Ultrasonographic evaluation of the thyroid gland was performed in the first week of life in
107 term neonates. The serum level of thyroid stimulating hormone was normal in all neonates. Their gestational
age at birth was range from 37 to 41 weeks and birth weight was 3305±457.74 g. Sonography was performed
with 7.5 MHz linear array transducer (SA-8800MT, Medison, Korea) within the first week of postnatal
age. Maximal transverse (T), anteroposterior (AP), and longitudinal (L) dimensions of thyroid gland were measured.
The volume of each lobe was estimated by using standard geometric formula; volume of a prolate elipsoid
= T×AP×L×π/6. The total volume of the thyroid gland was calculated as the sum of the each lobe. The
correlations with total thyroid volume and weight, height, the body surface area, gestational age of the neonate
were estimated by Pearson’s coefficient and p value on Bivariate correlation analysis.
RESULTS : Total thyroid volume was 0.68±0.23 cm3, left and right lobe volumes of thyroid gland were 0.32±0.12
cm3 and 0.36±0.14 cm3, respectively. T, AP, and L dimension of right lobe were 0.69±0.14 cm, 0.71±0.13
cm, 1.37±0.22 cm, respectively. And those of left lobe were 0.70±0.11 cm, 0.65±0.13 cm, 1.31±0.21 cm,
respectively. The Pearson’s coefficients for total thyroid volume with the weight, and body surface area of
neonate were 0.385, 0.395(p<0.05), respectively, representing significant correlation.
CONCLUSION : The total thyroid volume of the term euthyroid neonate was 0.68±0.23 cm3 and was significantly
correlated with the weight and body surface area. |
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| Keyword : Thyroid, US. Infants, newborm |
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pdf파일 : k20200207.pdf 
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> Journal > Journal Search 
Journal of Korean Society of Ultrasound in Medicine 2001 ; 20 (3) : p.207 - 211
