Comparison between ultrasonography and computed tomography for detecting the pyramidal lobe of the thyroid gland: a prospective multicenter study

Korean Journal of Radiology : Official Journal of the Korean Radiological Society
Dong Wook KimHyun Kyung Lim

Abstract

To compare the detection rates of the pyramidal lobe of the thyroid gland (TPL) using ultrasonography (US) and computed tomography (CT) in a prospective multi-center study. We enrolled 582 patients who underwent neck CT at six institutions. Each radiologist prospectively evaluated the presence and features of TPLs on thyroid US. Radiologists were divided into two groups according to their previous experience in detecting TPL on US or CT. The same radiologist also retrospectively assessed CT findings, blinded to the corresponding US findings. The pyramidal lobe of the thyroid glands were detected in 230 cases (39.5%) on US and in 276 cases (47.6%) on CT. The TPL detection rate at the six institutions ranged from 22.0% to 59% for US and from 34.1% to 59% using CT. There were significant differences between US and CT in the detection rate, length, anteroposterior diameter, volume, and superior extent of TPL (p ≤ 0.027). The TPL detection rates on both US and CT (p < 0.001) differed significantly according to the experience level of the radiologists. When the CT result was used as a reference standard, the sensitivity, specificity, positive and negative predictive values, as well as the accuracy of US for TPL detection were 72.6%, ...Continue Reading

Citations

Aug 4, 2015·Anatomy Research International·Emin GurleyikUfuk Onsal
Sep 3, 2016·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Young Jun ChoiSeong Ho Park
Nov 2, 2017·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Ji Eun ParkSeong Ho Park
Dec 20, 2019·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Yeon Hyeon Choe

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