Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography

Objectives. The aim of the present study was to evaluate the value of high-resolution ultrasound (US) and computed tomography (CT) scan for preoperative prediction of the extrathyroidal extension (ETE). Methods. We analyzed the medical records of 377 patients with papillary thyroid carcinoma (PTC) w...

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Main Authors: Doh Young Lee, Tack-Kyun Kwon, Myung-Whun Sung, Kwang Hyun Kim, J. Hun Hah
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2014/351058
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author Doh Young Lee
Tack-Kyun Kwon
Myung-Whun Sung
Kwang Hyun Kim
J. Hun Hah
author_facet Doh Young Lee
Tack-Kyun Kwon
Myung-Whun Sung
Kwang Hyun Kim
J. Hun Hah
author_sort Doh Young Lee
collection DOAJ
description Objectives. The aim of the present study was to evaluate the value of high-resolution ultrasound (US) and computed tomography (CT) scan for preoperative prediction of the extrathyroidal extension (ETE). Methods. We analyzed the medical records of 377 patients with papillary thyroid carcinoma (PTC) with preoperative US and CT scan to calculate the sensitivity, specificity, and positive and negative predictive values of characteristics imaging features (such as contact and disruption of thyroid capsule) for the presence of ETE in postoperative pathologic examination. We also evaluated the diagnostic power for several combinations of US and CT findings. Results. ETE was present in 174 (46.2%) based on pathologic reports. The frequency of ETE was greater in the patients with greater degrees of tumor contact and disruption of capsule, as revealed by both US and CT scans (positive predictive value of 72.2% and 81.8%, resp.). Considering positive predictive values and AUC of US and CT categories, separately or combined, a combination of US and CT findings was most accurate for predicting ETE (83.0%, 0.744). Conclusions. This study suggests that ETE can be predicted most accurately by a combination of categories based on the findings of US and CT scans.
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spelling doaj-art-49a4ee91556e4433bd9d5a4cffbc11d32025-02-03T01:11:00ZengWileyInternational Journal of Endocrinology1687-83371687-83452014-01-01201410.1155/2014/351058351058Prediction of Extrathyroidal Extension Using Ultrasonography and Computed TomographyDoh Young Lee0Tack-Kyun Kwon1Myung-Whun Sung2Kwang Hyun Kim3J. Hun Hah4Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of KoreaDepartment of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-Ro, Jongno-Gu, Seoul 110-744, Republic of KoreaObjectives. The aim of the present study was to evaluate the value of high-resolution ultrasound (US) and computed tomography (CT) scan for preoperative prediction of the extrathyroidal extension (ETE). Methods. We analyzed the medical records of 377 patients with papillary thyroid carcinoma (PTC) with preoperative US and CT scan to calculate the sensitivity, specificity, and positive and negative predictive values of characteristics imaging features (such as contact and disruption of thyroid capsule) for the presence of ETE in postoperative pathologic examination. We also evaluated the diagnostic power for several combinations of US and CT findings. Results. ETE was present in 174 (46.2%) based on pathologic reports. The frequency of ETE was greater in the patients with greater degrees of tumor contact and disruption of capsule, as revealed by both US and CT scans (positive predictive value of 72.2% and 81.8%, resp.). Considering positive predictive values and AUC of US and CT categories, separately or combined, a combination of US and CT findings was most accurate for predicting ETE (83.0%, 0.744). Conclusions. This study suggests that ETE can be predicted most accurately by a combination of categories based on the findings of US and CT scans.http://dx.doi.org/10.1155/2014/351058
spellingShingle Doh Young Lee
Tack-Kyun Kwon
Myung-Whun Sung
Kwang Hyun Kim
J. Hun Hah
Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
International Journal of Endocrinology
title Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
title_full Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
title_fullStr Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
title_full_unstemmed Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
title_short Prediction of Extrathyroidal Extension Using Ultrasonography and Computed Tomography
title_sort prediction of extrathyroidal extension using ultrasonography and computed tomography
url http://dx.doi.org/10.1155/2014/351058
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