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arXiv 2103.08562cs.CVcs.AIcs.LGeess.IV
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基于深度学习的患者重新识别能够利用医学胸部X射线数据的生物特征

Deep Learning-based Patient Re-identification Is able to Exploit the Biometric Nature of Medical Chest X-ray Data

Friedrich-Alexander-Universität Erlangen-Nürnberg(埃尔朗根-纽伦堡弗里德里希-亚历山大大学)

Kai Packhäuser, Sebastian Gündel, Nicolas Münster, Christopher Syben, Vincent Christlein, Andreas Maier

摘要:

随着近年来深度学习技术的兴起和不断增长的潜力,公开可用的医疗数据集成为实现医疗领域诊断算法可重复开发的关键因素。医疗数据包含敏感的患者相关信息,因此通常通过删除患者标识符来匿名,例如,发表前患者姓名据我们所知,我们是第一个证明训练有素的深度学习系统能够从胸部X光数据中恢复患者身份的人。我们使用公开的大规模ChestX-ray 14数据集来证明这一点,该数据集收集了来自30,805名独特患者的112,120张正面胸部X射线图像。我们的验证系统能够识别两个正面胸部X射线图像是否来自同一个人,AUC为0.9940,分类准确率为95.55%。我们进一步强调,所提出的系统能够在初始扫描后十年或更长时间内显示同一个人。当追求检索方法时,我们观察到0.9748的mAP@R和0.9963的精度@1。此外,当在CheXpert和COVID-19图像数据汇集等外部数据集上评估我们训练的网络时,我们实现了高达0.9870的AUC和高达0.9444的精度@1。基于这种高识别率,潜在的攻击者可能会泄露患者相关信息,并额外交叉引用图像以获得更多信息。因此,敏感内容很有可能落入未经授权的人手中,或在违背有关患者意愿的情况下传播。特别是在COVID-19大流行期间,许多胸部X射线数据集已被发布以推进研究。因此,这样的数据可能容易受到基于深度学习的重新识别算法的潜在攻击。

英文摘要:

With the rise and ever-increasing potential of deep learning techniques in recent years, publicly available medical datasets became a key factor to enable reproducible development of diagnostic algorithms in the medical domain. Medical data contains sensitive patient-related information and is therefore usually anonymized by removing patient identifiers, e.g., patient names before publication. To the best of our knowledge, we are the first to show that a well-trained deep learning system is able to recover the patient identity from chest X-ray data. We demonstrate this using the publicly available large-scale ChestX-ray14 dataset, a collection of 112,120 frontal-view chest X-ray images from 30,805 unique patients. Our verification system is able to identify whether two frontal chest X-ray images are from the same person with an AUC of 0.9940 and a classification accuracy of 95.55%. We further highlight that the proposed system is able to reveal the same person even ten and more years after the initial scan. When pursuing a retrieval approach, we observe an mAP@R of 0.9748 and a precision@1 of 0.9963. Furthermore, we achieve an AUC of up to 0.9870 and a precision@1 of up to 0.9444 when evaluating our trained networks on external datasets such as CheXpert and the COVID-19 Image Data Collection. Based on this high identification rate, a potential attacker may leak patient-related information and additionally cross-reference images to obtain more information. Thus, there is a great risk of sensitive content falling into unauthorized hands or being disseminated against the will of the concerned patients. Especially during the COVID-19 pandemic, numerous chest X-ray datasets have been published to advance research. Therefore, such data may be vulnerable to potential attacks by deep learning-based re-identification algorithms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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