Developing an accurate method for estimating thyroid volume in calves using ultrasonography.

Diseases of the thyroid gland with struma formation can occur in calves suffering from iodine deficiency. The aim of the study was to develop a guideline for standardized ultrasonographic examination of the thyroid gland in order to determine its volume. Sonographic measurements of the thyroid lobes were carried out on three standardized axes in calves up to 3 months of age (n = 83).