Research Article

Ultrasound Measurements of Fetal Thyroid: Reference Ranges from a Cohort of Low-Risk Pregnant Women

Table 2

Measurements of longitudinal, anteroposterior, and transverse diameters and fetal thyroid lobe volume according to the side and gender of the fetus.

MeasurementsSidenMeanMedianDPMinMax value

LongitudinalR25513.0713.504.492.6024.800.3935
LongitudinalL25213.1013.304.552.7028.40
AnteroposteriorR2555.455.401.950.9011.100.0787
AnteroposteriorL2525.355.351.911.3010.70
TransverseR2555.975.702.111.3012.700.3530
TransverseL2525.905.652.131.6011.90
VolumeD255289.70227.91253.792.201586.100.0789
VolumeL251285.92212.36260.093.271693.90

MeasurementsGendernMeanMedianDPMinMax value

LongitudinalM13813.4113.804.203.8524.350.1563
LongitudinalF11712.6512.704.592.6523.65
AnteroposteriorM1385.625.381.901.8510.550.1384
AnteroposteriorF1175.135.451.781.209.80
TransverseM1386.166.002.052.0012.300.0931
TransverseF1175.685.602.011.459.80
VolumeM134633.68479.31546.9414.833280.100.0797
VolumeF117513.10420.54445.205.591955.50

ANOVA for repeated measurements; mean of right/left side measurements; Mann–Whitney Test; F: female; L: left; M: male; R: right.