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arXiv 2401.09791eess.IVcs.CVcs.LG

BreastRegNet:用于乳腺Faxitron与组织病理学图像配准的深度学习框架

BreastRegNet: A Deep Learning Framework for Registration of Breast Faxitron and Histopathology Images

Stanford University(斯坦福大学)

Negar Golestani, Aihui Wang, Gregory R Bean, Mirabela Rusu

AI总结:

本文提出BreastRegNet深度学习配准框架,通过单模态合成图像对训练,实现Faxitron与组织病理学图像的快速配准,标志点误差显著低于现有方法,有助于生成大规模数据集以训练更准确的乳腺癌检测模型。

摘要:

乳腺癌的标准治疗方案包括先进行新辅助治疗,然后手术切除肿瘤及周围组织。病理学家通常依赖称为Faxitron的柜式X射线影像来检查切除的乳腺组织,并判断残留病灶的范围。然而,准确确定残留癌的位置、大小和局灶性可能具有挑战性,错误的评估可能导致临床后果。采用自动化方法可以改进组织病理学流程,使病理学家能够更有效、更精确地选择采样区域。尽管这一必要性已得到公认,但目前尚无此类方法可用。训练此类自动检测模型需要在离体放射影像上获得准确的真实标签,这可以通过配准Faxitron图像与组织病理学图像,并将癌症范围从组织病理学映射到X射线图像来实现。本研究提出了一种基于深度学习的图像配准方法,该方法在单模态合成图像对上训练。模型使用50名接受新辅助化疗并接受手术的女性的数据进行训练。结果表明,我们的方法速度更快,并且平均标志点误差($2.1\pm1.96$ mm)显著低于当前最先进的迭代方法($4.43\pm4.1$ mm)和深度学习方法($4.02\pm3.15$ mm)。我们的方法在整合放射学与病理学信息方面性能的提升,有助于生成大规模数据集,从而能够训练出更准确的乳腺癌检测模型。

英文摘要:

A standard treatment protocol for breast cancer entails administering neoadjuvant therapy followed by surgical removal of the tumor and surrounding tissue. Pathologists typically rely on cabinet X-ray radiographs, known as Faxitron, to examine the excised breast tissue and diagnose the extent of residual disease. However, accurately determining the location, size, and focality of residual cancer can be challenging, and incorrect assessments can lead to clinical consequences. The utilization of automated methods can improve the histopathology process, allowing pathologists to choose regions for sampling more effectively and precisely. Despite the recognized necessity, there are currently no such methods available. Training such automated detection models require accurate ground truth labels on ex-vivo radiology images, which can be acquired through registering Faxitron and histopathology images and mapping the extent of cancer from histopathology to x-ray images. This study introduces a deep learning-based image registration approach trained on mono-modal synthetic image pairs. The models were trained using data from 50 women who received neoadjuvant chemotherapy and underwent surgery. The results demonstrate that our method is faster and yields significantly lower average landmark error ($2.1\pm1.96$ mm) over the state-of-the-art iterative ($4.43\pm4.1$ mm) and deep learning ($4.02\pm3.15$ mm) approaches. Improved performance of our approach in integrating radiology and pathology information facilitates generating large datasets, which allows training models for more accurate breast cancer detection.

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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