期刊
EUROPEAN JOURNAL OF RADIOLOGY
卷 159, 期 -, 页码 -出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.ejrad.2022.110667
关键词
Papillary thyroid cancer; Vascularity; Contrast-enhanced ultrasound; Recurrence; Relapse
In this study, the prognostic value of vascularity in papillary thyroid cancer (PTC) was investigated using contrast-enhanced ultrasound (CEUS). Hypervascularity depicted by CEUS was found to be independently associated with structural recurrence in patients with classic PTC.
Purpose: Although angiogenesis is crucial for the occurrence and development of solid tumors, the prognostic value of vascularity remains unclear in papillary thyroid cancer (PTC), due to the lack of effective techniques to evaluate vascularity. Contrast-enhanced ultrasound (CEUS) is an effective technique to evaluate vascularity. This study aimed to investigate whether vascularity depicted by CEUS was associated with structural recurrence in classic PTC.Methods: 512 consecutive patients who underwent total thyroidectomy and central lymph node dissection for classic PTC larger than 1 cm between January 2015 and December 2018 and who were followed up for 12 months or longer were retrospectively enrolled. For this study, iso-and hyperenhancement were considered hypervascularity, whereas hypovascularity referred to hypoenhancement. Kaplan-Meier cumulative event curves for structural recurrence were compared using the log-rank test. The multivariate Cox proportional hazard regression analysis was used to estimate hazard ratios (HRs) of hypervascularity depicted by CEUS for structural recurrence.Results: 61 (11.9 %) of 512 patients had structural recurrence. Hypervascular PTCs had a shorter recurrence-free survival rate than hypovascular PTCs (P < 0.001). In the multivariate analysis, hypervascularity (HR, 2.069; 95 % confidence interval [CI]: 1.087, 3.937), larger size (HR, 1.279; 95 % CI: 1.011, 1.618), multifocality (HR, 1.976; 95 % CI: 1.150, 3.396), extrathyroidal extension (HR, 2.276; 95 % CI: 1.026, 5.046), and lymph node metastasis (HR, 3.631; 95 % CI: 1.515, 8.701) were independently associated with structural recurrence.Conclusion: Hypervascularity depicted by CEUS was independently associated with structural recurrence in pa-tients with classic PTC.
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