贵州医科大学学报

2022, v.47;No.261(06) 704-709

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超声造影对C-TIRADS中甲状腺4~5类结节良恶性的鉴别价值
Diagnostic value of contrast-enhanced ultrasound in differentiating benign and malignant thyroid nodules in C-TIRADS 4-5

卢景新,陈俊君,何志忠,袁智帆,李霞,陈沛芬,邝永培
LU Jingxin,CHEN Junjun,HE Zhizhong,YUAN Zhifan,LI Xia,CHEN Peifen,KUANG Yongpei

摘要(Abstract):

目的 探讨超声造影对中国超声甲状腺影像报告和数据系统(C-TIRADS)中甲状腺4~5类结节良恶性的鉴别价值。方法 选取行甲状腺常规超声和超声造影检查的患者128例C-TIRADS 4~5类结节135个,采用细针穿刺(FNA)活检分为良恶性结节,采用超声造影检查结果分析良恶性结节的超声造影特征(结节强化方式、强化程度及周围有无环状增强等)及甲状腺结节实性部分的峰值强度(PI_M)、周边甲状腺组织峰值强度(PI_T)、PI_M/PI_T,采用受试者工作特征曲线(ROC)分析PI_M、PI_T及PI_M/PI_T对甲状腺C-TIRADS 4~5类结节良、恶性的诊断价值。结果 135个甲状腺C-TIRADS 4~5类结节中4类结节112个、5类结节23个,行FNA的92个结节中恶性结节45个、良性结节37个、FNA结果与手术结果不符的有10个,FNA诊断甲状腺恶性结节准确性为89.13%(82/92)、敏感性为90.00%(45/50)、特异性为88.10%(37/42);甲状腺良恶性结节的强化方式、强化程度及环状增强比较,差异均有统计学意义(P<0.05);甲状腺恶性结节PI_M和PI_M/PI_T明显低于良性结节,差异均有高度统计学意义(P<0.001);PI_M、PI_T及PI_M/PI_T绘制ROC曲线下面积(AUC)分别为0.784(P<0.05)和0.872(P<0.05),PI_M/PI_T(以0.872为临界点)鉴别甲状腺结节良恶性时的敏感性和特异性均高于PI_M、PI_T(以0.784为临界点,P<0.05)。结论 PI_M/PI_T能更好地鉴别甲状腺C-TIRADS 4~5类结节良恶性,PI_M/PI_T≥0.872时考虑为良性结节,PI_M/PI_T<0.872时考虑为恶性结节。
Objective To explore the diagnostic value of contrast-enhanced ultrasound(CEUS) in differentiating benign and maligrant thyroid nodules in Chinese thyroid imaging report and data system(C-TIRADS) 4-5 categories.Methods A total of 128 patients with 135 C-TIRADS 4-5 categories of thyroid nodules were selected for routine thyroid ultrasound and CEUS. Fine needle aspiration(FNA)biopsy was used to divide them into benign and malignant nodules. The results of CEUS were used to analyze the CEUS characteristics of benign and malignant nodules( enhancement mode, degree of enhancement and circular enhancement around), the peak intensity of solid part of nodule(PI_M), the peak intensity of peripheral thyroid tissue(PI_T) and PI_M/PI_T. Receiver operating characteristic curve(ROC) was used to analyze the diagnostic value of peak intensity of thyroid nodules(PI_M, PI_T) and PI_M/PI_Tin the diagnosis of benign and malignant thyroid nodules of C-TIRADS 4-5 categories.Results Among135 C-TIRADS 4-5 categories of thyroid nodules, 112 were C-TIRADS 4 and 23 were C-TIRADS 5.Among the 92 FNA nodules, 45 were malignant and 37 were benign. The accuracy of FNA in the diagnosis of thyroid malignant nodules was 89. 13%(82/92), the sensitivity was 90. 00%(45/50),and the specificity was 88. 10%(37/42). There were significant differences in the enhancement mode, degree and ring enhancement between benign and malignant thyroid nodules(P< 0. 05). PI_M and PI_M/PI_Tof thyroid malignant nodules were significantly lower than those of benign nodules(P<0. 001). The area under ROC curve(AUC) of PI_M, PI_T, and PI_M/PI_Twere 0. 784(P< 0. 05) and0. 872(P< 0. 05), respectively. The sensitivity and specificity of PI_M/PI_T(taking 0. 872 as the critical point) in differentiating benign and malignant thyroid nodules were higher than those of PI_Mand PI_T(taking 0. 784 as the critical point,P< 0. 05).Conclusion PI_M/PI_Tcan better distinguish benign and malignant C-TIRADS 4-5 categories of thyroid nodules. When PI_M/PI_T≥0. 872, it is considered as benign nodules, and when PI_M/PI_T< 0. 872, it is considered as malignant nodules.

关键词(KeyWords): 甲状腺结节;良恶性;超声造影;细针穿刺;中国超声甲状腺影像报告和数据系统;结节实性部分的峰值强度;周边甲状腺组织峰值强度
thyroid nodule;benign and malignant;contrast-enhanced ultrasound (CEUS);fine needle aspiration (FNA);Chinese thyroid imaging report and data system (C-TIRADS);peak intensity of solid part of nodule (PIM);peak intensity of peripheral thyroid tissue (PIT)

Abstract:

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基金项目(Foundation): 广东省医学科学技术研究基金(A2016172);; 东莞市社会科技发展(一般)项目(201950715001634)

作者(Author): 卢景新,陈俊君,何志忠,袁智帆,李霞,陈沛芬,邝永培
LU Jingxin,CHEN Junjun,HE Zhizhong,YUAN Zhifan,LI Xia,CHEN Peifen,KUANG Yongpei

DOI: 10.19367/j.cnki.2096-8388.2022.06.014

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