Radiology:有了乳腺肿块,该不该活检看看?

2019-06-16 shaosai MedSci原创

本研究旨在评价联合钼靶放射组学和定量3分隔乳腺(3CB)图像分析来减少不必要的良性乳腺活检的价值。

本研究旨在评价联合钼靶放射组学和定量3成分乳腺(3CB)图像分析来减少不必要的良性乳腺活检的价值。

本研究利用双能量头尾和侧斜位X线摄影评价109例BI-RADS分级为4或5的乳腺肿块患者(35例侵袭性乳腺癌和74例良性病变)。利用映像技术计算每个体素中包含水、脂肪和蛋白厚度定量评价。自动分割肿块,并提取低能量X线摄影和定量成分图像中的征象。利用线性渐变分类系统联合预先设定征象特征进行10倍交叉验证来鉴别良恶性肿块:1)单独使用水-脂-蛋白质成分图像,2)X线摄影放射组学,3)联合上述两种。以最大敏感性时的阳性活检结果预测值(PPV3)作为主要评价指标。该结果与传统诊断性数字X线摄影结果相比较。

结果为,传统诊断性数字X线摄影的PPV3为32.1% (35/109; 95%CI: 23.9%, 41.3%), 敏感性为100%。相比之下,联合X线摄影放射组学和定量3CB图像分析PPV3为49% (34 /70; 95% CI: 36.5%, 58.9%; P < .001), 敏感性为97% (34 /35; 95% CI: 90.3%, 100%; P< .001),整体活检率减少35.8% (39/109) (P < .001)。

本研究表明,定量3种成分乳腺图像分析联合X线摄影放射组学具有减少非必要活检的潜能。

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    2019-06-18 cnxcy

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