声触诊组织量化技术鉴别乳腺良恶性肿块的价值

目的 探讨声触诊组织量化(virtual touch tissues quantification,VTQ)技术鉴别乳腺良恶性肿块的可行性和应用价值.方法 应用VTQ技术对72例患者共76个乳腺实性肿块及正常腺体进行了检测,应用组内相关系数(intraclass correlation coefficient,ICC)评价VTQ测值的可重复性;对照病理结果,构建ROC曲线确定VTQ测值的诊断界值.结果 乳腺实性肿块和正常腺体的VTQ测值均可重复性良好.VTQ测值的诊断临界值为6.37 m/s,敏感度为96.3％,特异度为91.8％,准确度为93.4％.结论 VTQ技术应用于乳腺稳定性良好,有助于乳腺良恶性肿块的鉴别.

Diagnostic value of virtual tough tissues quantification in discriminating breast benign and malignant solid tumor

Objective To evaluate the feasibility and the diagnostic value of virtual touch tissues quantification(VTQ) in discriminating breast benign and malignant solid tumors.Methods A total of 72 patients with 76 breast solid tumors and the normal glandular tissues were examined by means of VTQ technique.The reproducibility of VTQ values was analyzed with intraclass correlation coefficient (ICC).Compared with the pathologic diagnosis,the cut-off point of VTQ value was determined by receiver operating characteristic curve.Results All VTQ values measured in normal glandular tissue and solid tumors of patients were with good reproducibility.The cut off point of VTQ value was determined as 6.37 m/s,sensitivity was 96.3 ％,specificity was 91.8 ％ and accuracy was 93.4 ％.Conclusions It was stable for VTQ technique appling in breast,,which is a new quantitative and helpful method in discriminating breast benign and malignant solid tumors.