CT平扫瘤体与甲状腺边缘接触程度对乳头状癌中央组#br#
淋巴结转移的预测

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Abstract Objective: To investigate the value of using CT sign “thyroid marginal contact” of papillary thyroid carcinoma(PTC) to predict the central lymph node metastasis(CLNM). Methods: This article reviewed 207 patients with surgically and pathologically verified PTC, among the patients, 104 patients with CLNM, and 103 patients without CLNM. According to the area of thyroid marginal contact, divided the patients into three groups: <1/4 group, 1/4~<1/2 group and ≥1/2 group. The data was analyzed by Chi-square test, and the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of <1/4 group, 1/4~<1/2 group，≥1/2 group and 1/4~<1/2 group combined with ≥1/2 group(≥1/4 group) in positive CLNM were calculated. Results: The Chi-square test among multiple groups indicated that there were statistical differences between three groups in CLNM(χ2=14.540, P<0.05). Pairwise comparison with Chi-square test indicated that there was statistical difference between <1/4 group and 1/4~<1/2 group(χ2=9.514, P<0.012 5), <1/4 group and ≥1/2 group(χ2=13.715, P<0.012 5), and there was no statistical difference between 1/4~<1/2 group and ≥1/2 group(χ2=0.752, P>0.012 5). The sensitivity(88%) and the accuracy(61%) of ≥1/4 group were the highest; the specificity of the ≥1/2 group is the highest(72%). Conclusion: The thyroid marginal contact can provide important evidence for the dissection of CLNM. The sensitivity and the accuracy of ≥1/4 group are the highest.

Key words： Thyroid neoplasms Carcinoma, papillary Neoplasm metastasis Tomography, spiral computed

Received: 20 July 2016

PACS:	Ｒ736.1
	Ｒ730.261
	Ｒ814.42

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	Articles by authors
	YIN Bing-xin1
	LI Ning2
	HAN Zhi-jiang3

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YIN Bing-xin1,LI Ning2,HAN Zhi-jiang3. The value of CT sign “thyroid marginal contact” of papillary thyroid carcinoma to#br# predict the cervical lymph node metastasis[J]. JOURNAL OF CHINA MEDICAL IMAGING, 2017, 28(3): 173-175.

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http://www.jccmi.com.cn/EN/ OR http://www.jccmi.com.cn/EN/Y2017/V28/I3/173

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