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Endocrine

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01-12-2018 | Endocrine Methods and Techniques

Ectopic thyroids have lower computed tomography attenuation values than orthotopic thyroids

Authors: Ting Gu, Ying-li Lu, Bing Han, Bo-Ren Jiang, Li-Zhen Wang, Li-Zhen Yang, Yong-Shun Han

Published in: Endocrine | Issue 3/2018

Abstract

Purpose

To determine whether ectopic thyroid had the same computed tomography (CT) value as orthotopic thyroid.

Methods

Twenty-one patients with 23 ectopic thyroids and 23 controls with orthotopic thyroids underwent CT scans and were included in this retrospective study. The CT images were reviewed in a blinded fashion by two radiologists. Independent-Samples T-test was used for comparison of CT attenuation values between two groups.

Results

Ectopic thyroids had significantly lower non-enhanced attenuation (91.04 ± 5.97 Hounsfield Units vs. 106.56 ± 4.06 Hounsfield Units, P = 0.038) and contrast-enhanced attenuation (141.32 ± 6.42 Hounsfield Units vs. 169.82 ± 4.30 Hounsfield Units, P = 0.001) values than orthotopic thyroids.

Conclusions

Ectopic thyroids have lower CT attenuation values than orthotopic thyroids probably due to the structural or functional abnormalities. The dysgenesis and pathological changes of the ectopic thyroids may contribute to functional deficiency which finally leads to decrease of the CT attenuation values.

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Title: Ectopic thyroids have lower computed tomography attenuation values than orthotopic thyroids
Authors: Ting Gu
Ying-li Lu
Bing Han
Bo-Ren Jiang
Li-Zhen Wang
Li-Zhen Yang
Yong-Shun Han
Publication date: 01-12-2018
Publisher: Springer US
Published in: Endocrine / Issue 3/2018
Print ISSN: 1355-008X
Electronic ISSN: 1559-0100
DOI: https://doi.org/10.1007/s12020-018-1747-5

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