arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.08563eess.IVcs.CVcs.LG
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SCREENet:用于高分辨率合成乳腺摄影筛查扫描分类的多视图深度卷积神经网络

SCREENet: A Multi-view Deep Convolutional Neural Network for Classification of High-resolution Synthetic Mammographic Screening Scans

Stanford University(斯坦福大学)

Saeed Seyyedi, Margaret J. Wong, Debra M. Ikeda, Curtis P. Langlotz

摘要:

目的:开发和评估多视图深度学习方法的准确性,以分析数字乳腺断层合成摄影筛查病例的高分辨率合成乳腺X线照片,并评估图像分辨率和训练集大小对准确性的影响。材料与方法:在一项回顾性研究中,收集了在我们机构获得的21,264例筛查数字乳腺断层合成摄影(DBT)检查以及相关放射学报告。这些检查的2D合成乳腺X线摄影图像(具有不同的分辨率和数据集大小)用于训练多视图深度卷积神经网络(MV-CNN),以在对保留的检查集进行评价之前将筛选图像分类为BI-RADS类别(BI-RADS 0、1和2)。结果如下:对于在完整数据集上训练的MV-CNN,BI-RADS 0与非BI-RADS 0类别的受试者工作特征曲线(AUC)下的面积为0.912。该模型的准确率为84.8%,召回率为95.9%,精确率为95.0%。当用50%和25%的图像训练相同的模型时,该AUC值降低(AUC = 0.877,P=0.010和0.834,P=0.009)。此外,当使用采样不足1/2和1/4的图像训练同一模型时,性能下降(分别为AUC = 0.870,P=0.011和0.813,P=0.009)。总结:这种深度学习模型将高分辨率合成乳腺X射线摄影扫描分为正常和需要使用数万张高分辨率图像进行进一步检查。较小的训练数据集和较低分辨率的图像都导致性能显着下降。

英文摘要:

Purpose: To develop and evaluate the accuracy of a multi-view deep learning approach to the analysis of high-resolution synthetic mammograms from digital breast tomosynthesis screening cases, and to assess the effect on accuracy of image resolution and training set size. Materials and Methods: In a retrospective study, 21,264 screening digital breast tomosynthesis (DBT) exams obtained at our institution were collected along with associated radiology reports. The 2D synthetic mammographic images from these exams, with varying resolutions and data set sizes, were used to train a multi-view deep convolutional neural network (MV-CNN) to classify screening images into BI-RADS classes (BI-RADS 0, 1 and 2) before evaluation on a held-out set of exams. Results: Area under the receiver operating characteristic curve (AUC) for BI-RADS 0 vs non-BI-RADS 0 class was 0.912 for the MV-CNN trained on the full dataset. The model obtained accuracy of 84.8%, recall of 95.9% and precision of 95.0%. This AUC value decreased when the same model was trained with 50% and 25% of images (AUC = 0.877, P=0.010 and 0.834, P=0.009 respectively). Also, the performance dropped when the same model was trained using images that were under-sampled by 1/2 and 1/4 (AUC = 0.870, P=0.011 and 0.813, P=0.009 respectively). Conclusion: This deep learning model classified high-resolution synthetic mammography scans into normal vs needing further workup using tens of thousands of high-resolution images. Smaller training data sets and lower resolution images both caused significant decrease in performance.

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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