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目的探讨声触诊组织量化成像(VTIQ)技术对颈部转移性与非转移性淋巴结鉴别诊断价值。方法回顾性分析经病理证实的85例患者85个颈部肿大淋巴结的VTIQ图像资料。测量淋巴结的VTIQ剪切波速度(SWV),绘制受试者操作特征曲线(ROC),评估VTIQ对颈部转移性与非转移性淋巴结的鉴别诊断价值。结果 85个颈部肿大淋巴结中,转移性淋巴结44个,非转移性淋巴结41个(其中血液及淋巴系统疾病淋巴结24个,反应性增生淋巴结17个)。转移性淋巴结SWV值明显高于非转移性淋巴结SWV值(P<0.001)。转移性淋巴结与血液及淋巴系统疾病淋巴结比较,ROC曲线下面积(AUC)为0.943,SWV截断值为3.23m/s时,准确性88.24%、灵敏度88.64%、特异度87.50%;转移性淋巴结与反应性增生淋巴结比较,AUC为0.968,SWV截断值为3.27 m/s时,准确性90.16%、灵敏度88.64%、特异度94.12%。结论 VTIQ对鉴别颈部转移性与非转移性淋巴结有一定诊断价值。
Objective To investigate the value of acoustic palpation Tissue Quantization Imaging (VTIQ) in the differential diagnosis of metastatic cervical lymph nodes and non-metastatic lymph nodes. Methods The VTIQ images of 85 cervical lymph nodes were retrospectively analyzed in 85 patients confirmed by pathology. The VTIQ shear wave velocity (SWV) of the lymph nodes was measured and the receiver operating characteristic curve (ROC) was plotted to evaluate the differential diagnostic value of VTIQ for neck metastasis and non-metastatic lymph nodes. Results Among 85 cervical lymph nodes, there were 44 metastatic lymph nodes and 41 non - metastatic lymph nodes (including 24 lymph nodes of blood and lymphatic system and 17 reactive hyperplastic lymph nodes). The SWV of metastatic lymph nodes was significantly higher than that of non-metastatic lymph nodes (P <0.001). The area under the ROC curve (AUC) was 0.943 and the cutoff value of SWV was 3.23m / s, the accuracy was 88.24%, the sensitivity was 88.64% and the specificity was 87.50% compared with the lymph nodes of the blood and lymphatic system. Metastatic lymph node and Compared with reactive hyperplasia lymph nodes, the AUC was 0.968 and the cutoff value of SWV was 3.27 m / s, the accuracy was 90.16%, the sensitivity was 88.64% and the specificity was 94.12%. Conclusion VTIQ has certain diagnostic value in differentiating metastatic cervical lymph nodes from non-metastatic lymph nodes.