Detection of metastatic cervical lymph nodes in recurrent papillary thyroid carcinoma: Computed tomography versus positron emission tomography-computed tomography
- Authors
- Lee D.H.; Kang W.J.; Seo H.S.; Kim E.; Kim J.H.; Son K.-R.; Na D.G.
- Issue Date
- 2009
- Keywords
- CT; Lymph node metastasis; Papillary thyroid cancer; PET-CT
- Citation
- Journal of Computer Assisted Tomography, v.33, no.5, pp 805 - 810
- Pages
- 6
- Indexed
- SCOPUS
- Journal Title
- Journal of Computer Assisted Tomography
- Volume
- 33
- Number
- 5
- Start Page
- 805
- End Page
- 810
- URI
- https://scholarworks.korea.ac.kr/kumedicine/handle/2020.sw.kumedicine/16547
- DOI
- 10.1097/RCT.0b013e31818fb3f1
- ISSN
- 0363-8715
1532-3145
- Abstract
- OBJECTIVE: We sought to determine whether positron emission tomography-computed tomography (PET-CT) is more accurate than CT for detecting metastatic cervical lymph nodes in recurrent papillary thyroid carcinoma (PTC) and to determine the relationship between the CT features and PET-CT findings of metastatic nodes. METHODS: Eleven consecutive patients with recurrent PTC underwent contrast-enhanced CT (CECT) and PET-CT before surgery. We retrospectively evaluated CECT and PET-CT images to determine the presence of metastatic nodes by level-by-level analysis. The CT findings of the PET-CT results that were positive and negative for metastatic nodes were compared. RESULTS: Metastatic nodes were found at 28 (78%) of 36 neck levels surgically explored. The sensitivity, specificity, and accuracy of CECT for the detection of metastatic nodes were 75.0%, 87.5%, and 77.8%, respectively, and those of PET-CT were 35.7%, 87.5%, and 48.6%, respectively, by level-by-level analysis. No significant difference in the CT features was found between the PET-CT findings positive and negative for metastatic nodes (P > 0.05). CONCLUSIONS: Computed tomography is more sensitive and accurate than PET-CT for detecting metastatic lymph nodes in recurrent PTC. No significant relationship was found between the CT features and the PET-CT findings of the metastatic nodes. © 2009 Lippincott Williams & Wilkins, Inc.
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Collections - 2. Clinical Science > Department of Radiology > 1. Journal Articles
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