Towards dense volumetric pancreas segmentation in CT using 3D fully convolutional networks

Holger Roth; Masahiro Oda; Natsuki Shimizu; Hirohisa Oda; Yuichiro Hayashi; Takayuki Kitasaka; Michitaka Fujiwara; Kazunari Misawa; Kensaku Mori

doi:10.1117/12.2293499

2 March 2018 Towards dense volumetric pancreas segmentation in CT using 3D fully convolutional networks

Holger Roth, Masahiro Oda, Natsuki Shimizu, Hirohisa Oda, Yuichiro Hayashi, Takayuki Kitasaka, Michitaka Fujiwara, Kazunari Misawa, Kensaku Mori

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Proceedings Volume 10574, Medical Imaging 2018: Image Processing; 105740B (2018) https://doi.org/10.1117/12.2293499
Event: SPIE Medical Imaging, 2018, Houston, Texas, United States

Abstract

Pancreas segmentation in computed tomography imaging has been historically difficult for automated methods because of the large shape and size variations between patients. In this work, we describe a custom-build 3D fully convolutional network (FCN) that can process a 3D image including the whole pancreas and produce an automatic segmentation. We investigate two variations of the 3D FCN architecture; one with concatenation and one with summation skip connections to the decoder part of the network. We evaluate our methods on a dataset from a clinical trial with gastric cancer patients, including 147 contrast enhanced abdominal CT scans acquired in the portal venous phase. Using the summation architecture, we achieve an average Dice score of 89.7 ± 3.8 (range [79.8, 94.8])% in testing, achieving the new state-of-the-art performance in pancreas segmentation on this dataset.

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Holger Roth, Masahiro Oda, Natsuki Shimizu, Hirohisa Oda, Yuichiro Hayashi, Takayuki Kitasaka, Michitaka Fujiwara, Kazunari Misawa, and Kensaku Mori "Towards dense volumetric pancreas segmentation in CT using 3D fully convolutional networks", Proc. SPIE 10574, Medical Imaging 2018: Image Processing, 105740B (2 March 2018); https://doi.org/10.1117/12.2293499

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