Radiology:术前MRI征象与乳腺癌新辅助化疗和手术后局部复发的相关性

2019-02-26 shaosai MedSci原创

本研究旨在验证乳腺癌并行新辅助化疗(NAC)后保乳手术(BCS)局部复发(LRR)MRI和临床病理征象的相关性。

本研究旨在验证乳腺癌并行新辅助化疗(NAC)后保乳手术(BCS)局部复发(LRR)MRI和临床病理征象的相关性。

本研究共纳入了548例乳腺癌并行术前MRI及NAC后BCS的患者。利用COX比例危害模型分析LRR率和位置、术前MRI征象(包括BI RADS)、临床病例特征(年龄、等级、肿瘤亚型、组织学分级、淋巴血管入侵、新辅助化疗和内分泌治疗)来识别与无LRR生存期(LRFS)的独立相关指标。

结果为,在548例女性患者中,随访中位数23.1个月后共有23 (4.2%)出现LRR。在COX回归分析中,年龄越小(≤ 40 years) (HR= 2.932; 95%CI: 1.233, 6.969; P = .015)或术前图像出现非肿块性增强(HR= 3.220; 95% CI: 1.274, 8.140; P = .014)与LRFS具有相关性。LRR在降级BCS组原发肿瘤同一象限要比预先计划BCS组更为常见(80.0% [16/20] vs 33.3% [1/3]。

本研究表明,年龄≤40岁或术前MR图像出现非肿块性增强与局部无复发生存期较差具有相关性,局部复发多见于行新辅助化疗后保乳手术后原发肿瘤的同一象限。

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    2019-02-28 chg122

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