Radiomics signature for prediction of lateral lymph node metastasis in conventional papillary thyroid carcinoma

Autoři: Vivian Y. Park aff001;  Kyunghwa Han aff001;  Hye Jung Kim aff002;  Eunjung Lee aff003;  Ji Hyun Youk aff004;  Eun-Kyung Kim aff001;  Hee Jung Moon aff001;  Jung Hyun Yoon aff001;  Jin Young Kwak aff001
Působiště autorů: Department of Radiology, Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea aff001;  Department of Radiology, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Korea aff002;  Department of Computational Science and Engineering, Yonsei University, Seoul, Korea aff003;  Department of Radiology, Gangnam Severance Hospital, Research Institute of Radiological Science, Yonsei University College of Medicine, Seoul, Korea aff004
Vyšlo v časopise: PLoS ONE 15(1)
Kategorie: Research Article



Preoperative neck ultrasound (US) for lateral cervical lymph nodes is recommended for all patients undergoing thyroidectomy for thyroid malignancy, but it is operator dependent. We aimed to develop a radiomics signature using US images of the primary tumor to preoperatively predict lateral lymph node metastasis (LNM) in patients with conventional papillary thyroid carcinoma (cPTC).


Four hundred consecutive cPTC patients from January 2004 to February 2006 were enrolled as the training cohort, and 368 consecutive cPTC patients from March 2006 to February 2007 served as the validation cohort. A radiomics signature, which consisted of 14 selected features, was generated by the least absolute shrinkage and selection operator (LASSO) regression model in the training cohort. The discriminating performance of the radiomics signature was assessed in the validation cohort with the area under the receiver operating characteristic curve (AUC).


The radiomics signature was significantly associated with lateral cervical lymph node status (p < 0.001). The AUC of its performance in discriminating metastatic and non-metastatic lateral cervical lymph nodes was 0.710 (95% CI: 0.649–0.770) in the training cohort and was 0.621 (95% CI: 0.560–0.682) in the validation cohort.


The present study showed that US radiomic features of the primary tumor were associated with lateral cervical lymph node status. Although their discriminatory performance was slightly lower in the validation cohort, our study shows that US radiomic features of the primary tumor alone have the potential to predict lateral LNM.

Klíčová slova:

Cancer detection and diagnosis – Diagnostic medicine – Lymph nodes – Metastasis – Physicians – Surgical and invasive medical procedures – Thyroid – Thyroid carcinomas


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2020 Číslo 1
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