It is important to evaluate thyroid size before any thyroid surgical involvement to introduce
the minimal invasive surgical procedures and the accuracy of the therapy dosage is directly based on
the accuracy of thyroid volume estimation. This paper surveys the volume estimation of thyroid gland
with Ultrasound (US). The techniques that have been used in the Ultrasound thyroid volume calculations
have been discussed in addition to the data type, situations of application of each medical device
with thyroid gland disorder or disease. Besides that, the comparison between the Ultrasound and some
other medical devices that are used in the thyroid volume estimation has been made. We conclude by selecting several papers
which have presented original ideas that: first, MRI and CT have the highest accuracy in the thyroid gland volume estimation
but the Ultrasound still widely and robust procedure that are used for thyroid volume measurements in the routine
clinical setting. Second, the automated calculation for the thyroid size improved the estimation results especially for
the Ultrasound; third, there are no studies that applied these calculations on the large multinodular goiters because of the
US probe foot pad limitation.
Keywords: CT scans, MRI, scintigraphy, SPECT, thyroid gland, ultrasound.
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