Liver Lesion Segmentation with slice-wise 2D Tiramisu and Tversky loss function (2019-05-09T00:00:00.000000Z)

TL;DR

This work proposes a method as a part of the LiTS (Liver Tumor Segmentation Challenge) competition for ISBI 17 and MICCAI 17 comparing methods for automatics egmentation of liver lesions in CT scans and achieves very good shape extractions with high detection sensitivity, with competitive scores at time of publication.

Abstract

At present, lesion segmentation is still performed manually (or semi-automatically) by medical experts. To facilitate this process, we contribute a fully-automatic lesion segmentation pipeline. This work proposes a method as a part of the LiTS (Liver Tumor Segmentation Challenge) competition for ISBI 17 and MICCAI 17 comparing methods for automatics egmentation of liver lesions in CT scans. By utilizing cascaded, densely connected 2D U-Nets and a Tversky-coefficient based loss function, our framework achieves very good shape extractions with high detection sensitivity, with competitive scores at time of publication. In addition, adjusting hyperparameters in our Tversky-loss allows to tune the network towards higher sensitivity or robustness.

Authors

J. Hesser

1 papers

Tomasz K. Konopczynski

1 papers

Karsten Roth

5 papers

Liver Lesion Segmentation with slice-wise 2D Tiramisu and Tversky loss function

TL;DR

Abstract

Authors

References16 items

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