16 March 2017 A transfer learning approach for classification of clinical significant prostate cancers from mpMRI scans
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Abstract
Deep learning has shown a great potential in computer aided diagnosis. However, in many applications, large dataset is not available. This makes the training of a sophisticated deep learning neural network (DNN) difficult. In this study, we demonstrated that with transfer learning, we can quickly retrain start-of-the-art DNN models with limited data provided by the prostateX challenge. The training data consists of 330 lesions, only 78 were clinical significant. Efforts were made to balance the data during training. We used ImageNet pre-trained inceptionV3 and Vgg-16 model and obtained AUC of 0.81 and 0.83 respectively on the prostateX test data, good for a 4th place finish. We noticed that models trained for different prostate zone has different sensitivity. Applying scaling factors before merging the result improves the AUC for the final result.
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Quan Chen, Xiang Xu, Shiliang Hu, Xiao Li, Qing Zou, Yunpeng Li, "A transfer learning approach for classification of clinical significant prostate cancers from mpMRI scans", Proc. SPIE 10134, Medical Imaging 2017: Computer-Aided Diagnosis, 101344F (16 March 2017); doi: 10.1117/12.2279021; https://doi.org/10.1117/12.2279021
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