Title
Uncertainty-driven Sanity Check: Application to Postoperative Brain Tumor Cavity Segmentation.
Abstract
Uncertainty estimates of modern neuronal networks provide additional information next to the computed predictions and are thus expected to improve the understanding of the underlying model. Reliable uncertainties are particularly interesting for safety-critical computer-assisted applications in medicine, e.g., neurosurgical interventions and radiotherapy planning. We propose an uncertainty-driven sanity check for the identification of segmentation results that need particular expert review. Our method uses a fully-convolutional neural network and computes uncertainty estimates by the principle of Monte Carlo dropout. We evaluate the performance of the proposed method on a clinical dataset with 30 postoperative brain tumor images. The method can segment the highly inhomogeneous resection cavities accurately (Dice coefficients 0.792 $pm$ 0.154). Furthermore, the proposed sanity check is able to detect the worst segmentation and three out of the four outliers. The results highlight the potential of using the additional information from the modelu0027s parameter uncertainty to validate the segmentation performance of a deep learning model.
Year
Venue
Field
2018
arXiv: Computer Vision and Pattern Recognition
Monte Carlo method,Sanity,Pattern recognition,Computer science,Segmentation,Outlier,Brain tumor,Artificial intelligence,Deep learning,Dice,Artificial neural network,Machine learning
DocType
Volume
Citations 
Journal
abs/1806.03106
2
PageRank 
References 
Authors
0.35
7
5
Name
Order
Citations
PageRank
Alain Jungo121.03
Raphael Meier230714.51
Ekin Ermis320.35
Evelyn Herrmann420.35
Mauricio Reyes57313.74