JNCI:耶鲁超百万人数据提示,3D钼靶或能提高乳腺癌筛查检出率!

2021-06-22 MedSci原创 MedSci原创

由此可见,3D钼靶能为更好的乳腺癌筛查带来获益。

去年年底,世界卫生组织(WHO)下属国际癌症研究机构(IARC)发布数据显示,乳腺癌已超越肺癌,成为全球最常见的癌症。世界上每20名女性中就有1名在一生的某个时刻被诊断为乳腺癌。同时,乳腺癌以高达15%的死亡率位列女性癌症死亡率之首。

与所有癌症一样,越早发现就越有可能得到有效的治疗。乳腺X线造影术(乳腺钼靶检查)在乳腺癌的早诊早治上发挥了重要作用,提升了患者的生存机率与生存质量。乳腺钼靶与女性健康息息相关,也是癌症发展史上的重要一笔。

其他如断层融合摄影、MRI、超声等多种技术作为乳腺癌筛查补充方法的价值。近几年来,一种在此基础上发展的数字乳腺断层融合摄影技术(DBT,简称3D钼靶)正在兴起。然而,有关3D钼靶与传统钼靶项目之间的优劣一直是研究的重点。

2018年,来自的瑞典研究团队发表在《柳叶刀》子刊Lancet Oncology上的研究结果显示,经过五年时间对近15000名女性的筛查,3D钼靶的癌症检出率高于传统钼靶34%,而且大多数检测到的肿瘤是浸润性的。但在2019年,该刊再次发表了来自挪威的一项研究,显示两项检查技术并没有明显的检出率差异。

为了比较在乳腺癌筛查中,DBT与传统钼靶相比是否具有更高的癌症检出率和更低的召回率(指的是因查见结果异常而回到医院进行进一步检查),来自美国耶鲁大学医学院的专家开展了一项真是世界研究,旨在评估DBT的筛查结果,并描述DBT被广泛采用后对人群健康的影响特点。结果发表在最新的《美国国家癌症研究所杂志》(JNCI)杂志上。

这是一项观察性研究,评估使用2D乳房X光摄影与DBT筛查的妇女的乳腺癌筛查结果。使用了一家大型私人健康保险公司的非识别行政数据,并纳入了20151月至201712月期间筛查的40-64岁女性。使用多变量逻辑回归的患者层面分析评估人口层面采用DBT使用和结果之间关系。

结果共纳入包括4580698名妇女的7602869张乳房X光照片,其中27.5%接受了DBT。总的来说,2D乳腺摄影相比,DBT与召回率降低有关(每113.6/1000人 [99% CI = 113.0-114.2] vs 115.4 [99% CI = 115.0-115.8])。其中40-44岁的年轻女性的召回率降低更多(153/1000 [99% CI = 151-15] vs 164 [99% CI = 163-166])。

同时,与传统2D钼靶相比,DBT与较高的活检率(19.6/1000 [99% CI = 19.3-19.8] vs 15.2 [99% CI = 15.1-15.4])和较高的癌症检测率(4.9 /1000[99% CI = 4.7-5.0] vs 3.8 [99% CI = 3.7-3.9])有关。

进一步分析显示,在所有的年龄组中,3D钼靶都能提高5-12个月乳腺癌的检出率(0.52/1000 vs 0.46/1000)。

由此可见,3D钼靶能为更好的乳腺癌筛查带来获益。

 

参考文献:

Comparative Effectiveness of Digital Breast Tomosynthesis for Breast Cancer Screening among Women 40-64 Years Old. J Natl Cancer Inst. 2021 Apr 3:djab063. doi: 10.1093/jnci/djab063.

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本研究旨在评估PR状态在ER阴性乳腺癌中的预后作用,并探究化疗对PR阳性患者生存率的影响。

Radiology:动态增强MRI在极高密度乳腺女性患者中预测乳腺癌的发生

乳腺钼靶所得的乳腺FGT百分比已用于对女性进行MRI分类。此外,背景实质增强(BPE)被发现是乳腺癌的独立危险因素,但受到观察者内部和观察者之间的变异性的影响。