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Automatic liver parenchyma and vessel segmentation in CT using deep learning

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Install

pip install git+https://github.com/andreped/livermask.git

As TensorFlow 2.4 only supports Python 3.6-3.8, so does livermask.

To add GPU inference support for liver vessel segmentation (which uses Chainer and CuPy), you need to install CuPy. This can be easily done by adding cupy-cudaX, where X is the CUDA version you have installed, for instance cupy-cuda110 for CUDA-11.0:

pip install cupy-cuda110

Program has been tested using Python 3.7 on Windows, macOS, and Ubuntu Linux 18.04.

Usage:

livermask --input path-to-input --output path-to-output
command description
--input the full path to the input data. Could be nifti file or directory (if directory is provided as input)
--output the full path to the output data. Could be either output name or directory (if directory is provided as input)
--cpu to disable the GPU (force computations on CPU only)
--verbose to enable verbose
--vessels to segment vessels

Using code directly:

If you wish to use the code directly (not as a CLI and without installing), you can run this command:

python -m livermask.livermask --input path-to-input --output path-to-output

DICOM/NIfTI format

Pipeline assumes input is in the NIfTI format, and output a binary volume in the same format (.nii). DICOM can be converted to NIfTI using the CLI dcm2niix, as such:

dcm2niix -s y -m y -d 1 "path_to_CT_folder" "output_name"

Note that "-d 1" assumed that "path_to_CT_folder" is the folder just before the set of DICOM scans you want to import and convert. This can be removed if you want to convert multiple ones at the same time. It is possible to set "." for "output_name", which in theory should output a file with the same name as the DICOM folder, but that doesn't seem to happen...

Troubleshooting

You might have issues downloading the model when using VPN. If any issues are observed, try to disable VPN and try again.

If the program struggles to install, attempt to install using:

pip install --force-reinstall --no-deps git+https://github.com/andreped/livermask.git

Acknowledgements

If you found this tool helpful in your research, please, consider citing it:

  @software{andre_pedersen_2021_5773145,
  author       = {André Pedersen},
  title        = {andreped/livermask: v1.3.0},
  month        = dec,
  year         = 2021,
  publisher    = {Zenodo},
  version      = {v1.3.0},
  doi          = {10.5281/zenodo.5773145},
  url          = {https://doi.org/10.5281/zenodo.5773145}}

Information on how to cite can be found here.

The model was trained on the LITS dataset. The dataset is openly accessible and can be downloaded from here.


Made with :heart: and python