Table 1

Ultrasound measurements of the thyroid gland in 100 healthy newborn infants within the first week of life

Male infants (n=49)Female infants (n=51)All infants
Mean (SD)RangeMean (SD)RangeMean (SD)Range
The length, breadth, depth, and volume are given for each lobe along with the combined volume of of the two lobes (R = right lobe; L = left lobe).
Length (cm)R1.99 (0.22)1.6–2.51.88 (0.26)0.9–2.51.94 (0.24)0.9–2.5
L1.96 (0.21)1.6–2.41.92 (0.27)0.9–2.41.94 (0.24)0.9–2.4
Breadth (cm)R0.87 (0.17)0.5–1.40.86 (0.13)0.6–1.20.87 (0.15)0.5–1.4
L0.89 (0.14)0.6–1.30.88 (0.17)0.6–1.40.89 (0.16)0.6–1.4
Depth (cm)R0.96 (0.12)0.7–1.30.97 (0.20)0.6–2.00.97 (0.16)0.6–2.0
L0.91 (0.13)0.7–1.20.99 (0.20)0.7–1.90.95 (0.17)0.7–1.9
Volume (ml)R0.84 (0.24)0.3–1.40.78 (0.22)0.5–1.70.81 (0.23)0.3–1.7
L0.79 (0.19)0.4–1.30.84 (0.29)0.4–1.70.82 (0.24)0.4–1.7
Total volume (ml)1.63 (0.37)0.7–2.41.61 (0.44)1.0–3.31.62 (0.41)0.7–3.3