Efficient Context-Aware Network for Abdominal Multi-organ Segmentation

• URL: http://arxiv.org/abs/2109.10601v1
• Date: Wed, 22 Sep 2021 09:05:59 GMT
• Title: Efficient Context-Aware Network for Abdominal Multi-organ Segmentation
• Authors: Fan Zhang, Yu Wang
• Abstract summary: We develop a whole-based coarse-to-fine framework for efficient and effective abdominal multi-organ segmentation. For the decoder module, anisotropic convolution with a k*k*1 intra-slice convolution and a 1*1*k inter-slice convolution is designed to reduce the burden. For the context block, we propose strip pooling module to capture anisotropic and long-range contextual information.
• Score: 8.92337236455273
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The contextual information, presented in abdominal CT scan, is relative consistent. In order to make full use of the overall 3D context, we develop a whole-volumebased coarse-to-fine framework for efficient and effective abdominal multi-organ segmentation. We propose a new efficientSegNet network, which is composed of encoder, decoder and context block. For the decoder module, anisotropic convolution with a k*k*1 intra-slice convolution and a 1*1*k inter-slice convolution, is designed to reduce the computation burden. For the context block, we propose strip pooling module to capture anisotropic and long-range contextual information, which exists in abdominal scene. Quantitative evaluation on the FLARE2021 validation cases, this method achieves the average dice similarity coefficient (DSC) of 0.895 and average normalized surface distance (NSD) of 0.775. The average running time is 9.8 s per case in inference phase, and maximum used GPU memory is 1017 MB.

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