Eur J Surg Oncol:磁共振成像的早期评估可预测三阴性乳腺癌对新辅助化疗的病理反应

2020-08-07 MedSci原创 MedSci原创

乳房磁共振成像(MRI)对预测新辅助系统治疗(NST)的病理完全缓解(pCR)的能力在不同生物亚型中有所不同。本研究旨在确定III期BrighTNess试验初始治疗后的乳房MRI结果与三阴性乳腺癌(T

乳房磁共振成像(MRI)对预测新辅助系统治疗(NST)的病理完全缓解(pCR)的能力在不同生物亚型中有所不同。本研究旨在确定III期BrighTNess试验初始治疗后的乳房MRI结果与三阴性乳腺癌(TNBC)患者pCR的相关性。

收集519例II-III期TNBC患者在基线和治疗中期的影像学和病理反应数据,这些患者按照协议进行了NST。MRI完全缓解(mCR)定义为所有靶病变的消失,MRI部分缓解(mPR)为最大肿瘤直径缩小≥50%。

总的来说,116名患者(22%)表现出mCR,而166名(32%)有mPR,237名(46%)有稳定/进展性疾病(SD/PD)。治疗中期MRI对pCR的阳性预测值(PPV)、阴性预测值和总体准确率分别为78%、56%和61%;准确率在gBRCA突变携带者和非携带者之间无显著差异(52% vs 63%,p = 0.10)。与SD/PD患者相比,mPR或mCR的患者在手术时发生pCR的可能性高3.35倍(95% CI 2.07-5.41)。完成治疗后,NST期间MRI反应与保乳手术资格显著相关(mCR为93.1% vs. SD/PD为81.6%,P <0.001)。

总之,在BrighTNess试验中,治疗中期MRI的完全缓解在TNBC完成NST后显示pCR的PPV为78%。然而,相当一部分mPR或SD/PD患者也实现了pCR。

原始出处:

Mehra GolshanStephanie M Wong, et al., Early assessment with magnetic resonance imaging for prediction of pathologic response to neoadjuvant chemotherapy in triple-negative breast cancer: Results from the phase III BrighTNess trial. Eur J Surg Oncol. 2020 Feb;46(2):223-228. doi: 10.1016/j.ejso.2019.10.002.

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    2021-06-27 minlingfeng
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    2020-08-09 xlysu
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    2020-08-08 anti-cancer

    谢谢梅斯分享这么多精彩信息

    0

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