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Prognostic Impact of Ultrasonography Features and (18)F-Fluorodeoxyglucose Uptake in Patients With Papillary Thyroid Microcarcinoma

Authors
 Ji Won Seo : Sang Hyun Hwang  ;  Arthur Cho  ;  Hye Sun Lee  ;  Eun-Kyung Kim  ;  Hee Jung Moon  ;  Jung Hyun Yoon  ;  Jin Young Kwak 
Citation
 Clinical and Experimental Otorhinolaryngology, Vol.9(1) : 62-69, 2016 
Journal Title
 Clinical and Experimental Otorhinolaryngology 
ISSN
 1976-8710 
Issue Date
2016
Keywords
Papillary Thyroid Microcarcinoma ; Positron Emission Tomography ; Thyroid ; Ultrasonography
Abstract
OBJECTIVES: To evaluate the prognostic impact of ultrasonography (US) features and (18)F-fluorodeoxyglucose ((18)F-FDG) uptake in patients with papillary thyroid microcarcinoma (PTMC). METHODS: This study included 74 patients with a single PTMC diagnosed pathologically. Patients underwent total thyroidectomy, or near-total thyroidectomy and staging thyroid US and positron emission tomography (PET) were performed prior to surgery. US features of thyroid nodules were reviewed retrospectively and the maximum standard uptake value (SUV) of nodules was semiquantitatively analyzed on (18)F-FDG PET/computed tomography (CT). Patients were followed-up for recurrence, which was defined as PTC on cytology results, elevated serum thyroglobulin (Tg) or anti-Tg antibody levels, or uptake on whole-body scintigraphy. We used univariate and multivariate analyses to evaluate whether poor prognostic outcomes were associated with US features or SUV values derived from PET/CT of nodules. In addition, subjects were divided into 2 groups for subgroup analyses: one with nodules equal to or larger than 5 mm and one with nodules smaller than 5 mm. RESULTS: Among the 74 patients, there was no recurrence. Thus we evaluated the correlation between SUV value and US features with poor prognostic factors of PTMC which included extrathyroid extension, central and lateral lymph node (LN) metastasis. However no clinicopathologic factors were associated with extrathyroid extension, central LN metastasis, or lateral LN metastasis. CONCLUSION: In patients with PTMC, US features and SUV values on FDG-PET were not related to extrathyroid extension or LN metastasis. However, future studies with a larger sample size and longer follow-up should be performed to verify the results of this study.
DOI
10.21053/ceo.2016.9.1.62
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Radiology (영상의학교실) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Nuclear Medicine (핵의학교실) > 1. Journal Papers
Yonsei Authors
곽진영(Kwak, Jin Young) ORCID logo https://orcid.org/0000-0002-6212-1495
김은경(Kim, Eun-Kyung) ORCID logo https://orcid.org/0000-0002-3368-5013
문희정(Moon, Hee Jung) ORCID logo https://orcid.org/0000-0002-5643-5885
서지원(Seo, Ji Won)
윤정현(Yoon, Jung Hyun) ORCID logo https://orcid.org/0000-0002-2100-3513
조응혁(Cho, Arthur Eung Hyuck) ORCID logo https://orcid.org/0000-0001-8670-2473
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146538
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