# 2D-Densely Connected Convolution Neural Networks for automatic Liver and Tumor Segmentation

arXiv: https://arxiv.org/abs/1802.02182 · HTML: https://mlsanity.com/paper/1802.02182/

## Key facts

- Cited by 5 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 5 Jan 2018.

## Built on by (most cited first, 5 of 5)

- [SAR-U-Net: squeeze-and-excitation block and atrous spatial pyramid pooling based residual U-Net for automatic liver segmentation in Computed Tomography](https://mlsanity.com/paper/2103.06419/) (2021)
- [EAR-U-Net: EfficientNet and attention-based residual U-Net for automatic liver segmentation in CT](https://mlsanity.com/paper/2110.01014/) (2021)
- [Efficient liver segmentation with 3D CNN using computed tomography scans](https://mlsanity.com/paper/2208.13271/) (2022)
- [Support-Query Prototype Fusion Network for Few-shot Medical Image Segmentation](https://mlsanity.com/paper/2405.07516/) (2024)
- [PMR-Net: Parallel Multi-Resolution Encoder-Decoder Network Framework for Medical Image Segmentation](https://mlsanity.com/paper/2409.12678/) (2024)

## Abstract (arXiv)

In this paper we propose a fully automatic 2-stage cascaded approach for segmentation of liver and its tumors in CT (Computed Tomography) images using densely connected fully convolutional neural network (DenseNet). We independently train liver and tumor segmentation models and cascade them for a combined segmentation of the liver and its tumor. The first stage involves segmentation of liver and the second stage uses the first stage's segmentation results for localization of liver and henceforth tumor segmentations inside liver region. The liver model was trained on the down-sampled axial slices (256 × 256), whereas for the tumor model no down-sampling of slices was done, but instead it was trained on the CT axial slices windowed at three different Hounsfield (HU) levels. On the test set our model achieved a global dice score of 0.923 and 0.625 on liver and tumor respectively. The computed tumor burden had an rmse of 0.044.