87 patients with pulmonary space-occupied lesions of the peripheral type which were either adhesive of close to pleura were examined using ultuasonography.Of them,64 cases of lung cancers and 23 of bening lesions were...87 patients with pulmonary space-occupied lesions of the peripheral type which were either adhesive of close to pleura were examined using ultuasonography.Of them,64 cases of lung cancers and 23 of bening lesions were then confirmed by展开更多
Objective To investgate the value of various parameters obtained from monoexponential,biexponential,and stretched exponential diffusion-weighted imaging models in the differential diagnosis of breast lesions.Methods A...Objective To investgate the value of various parameters obtained from monoexponential,biexponential,and stretched exponential diffusion-weighted imaging models in the differential diagnosis of breast lesions.Methods A retrospective study was performed in 54 patients with pathologically confirmed malignant tumors(n=30),benign lesions(n=34)and normal fibroglandular展开更多
目的探讨实时剪切波弹性成像技术(SWE)诊断乳腺肿块的价值。方法选择50例乳腺肿块进行检查,分别测量剪切波速度(SWV)及杨氏模量值(EI),以病理结果为金标准,分析良恶性病灶之间弹性参数的差异。结果经病理检查证实乳腺肿块50个,包括乳腺...目的探讨实时剪切波弹性成像技术(SWE)诊断乳腺肿块的价值。方法选择50例乳腺肿块进行检查,分别测量剪切波速度(SWV)及杨氏模量值(EI),以病理结果为金标准,分析良恶性病灶之间弹性参数的差异。结果经病理检查证实乳腺肿块50个,包括乳腺恶性病灶27个,乳腺良性病灶23个。良性肿块剪切波传播图较规则,蓝色为主,颜色分布均匀,充填完整,而恶性肿块剪切波传播图波形变异大,以红色为主,颜色分布杂乱,具有典型的充填缺损特征。乳腺肿块良恶性病灶SWV平均值分别为(2.47±0.50)和(6.58±1.16)m/s,EI平均值分别为(18.30±8.59)和(112.40±27.3)k Pa,差异有显著性意义(P<O.001)。绘制受试者操作特征(ROC)曲线得到剪切波速度值4.2 m/s、杨氏模量值50.0 k Pa为良恶性诊断最佳界点,诊断乳腺肿块良恶性的敏感度、特异度、准确度、阳性预测值、阴性预测值分别为85.2%、91.3%、88.0%、92.0%、84.0%。结论新型实时剪切波弹性成像技术对乳腺肿块良恶性的鉴别诊断有较好的应用价值。展开更多
文摘87 patients with pulmonary space-occupied lesions of the peripheral type which were either adhesive of close to pleura were examined using ultuasonography.Of them,64 cases of lung cancers and 23 of bening lesions were then confirmed by
文摘Objective To investgate the value of various parameters obtained from monoexponential,biexponential,and stretched exponential diffusion-weighted imaging models in the differential diagnosis of breast lesions.Methods A retrospective study was performed in 54 patients with pathologically confirmed malignant tumors(n=30),benign lesions(n=34)and normal fibroglandular
文摘目的探讨实时剪切波弹性成像技术(SWE)诊断乳腺肿块的价值。方法选择50例乳腺肿块进行检查,分别测量剪切波速度(SWV)及杨氏模量值(EI),以病理结果为金标准,分析良恶性病灶之间弹性参数的差异。结果经病理检查证实乳腺肿块50个,包括乳腺恶性病灶27个,乳腺良性病灶23个。良性肿块剪切波传播图较规则,蓝色为主,颜色分布均匀,充填完整,而恶性肿块剪切波传播图波形变异大,以红色为主,颜色分布杂乱,具有典型的充填缺损特征。乳腺肿块良恶性病灶SWV平均值分别为(2.47±0.50)和(6.58±1.16)m/s,EI平均值分别为(18.30±8.59)和(112.40±27.3)k Pa,差异有显著性意义(P<O.001)。绘制受试者操作特征(ROC)曲线得到剪切波速度值4.2 m/s、杨氏模量值50.0 k Pa为良恶性诊断最佳界点,诊断乳腺肿块良恶性的敏感度、特异度、准确度、阳性预测值、阴性预测值分别为85.2%、91.3%、88.0%、92.0%、84.0%。结论新型实时剪切波弹性成像技术对乳腺肿块良恶性的鉴别诊断有较好的应用价值。