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+ ---
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+ language:
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+ - en
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+ license: apache-2.0
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+ library_name: atommic
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+ datasets:
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+ - CC359
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+ thumbnail: null
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+ tags:
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+ - image-reconstruction
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+ - JointICNet
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+ - ATOMMIC
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+ - pytorch
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+ model-index:
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+ - name: REC_JointICNet_CC359_12_channel_poisson2d_5x_10x_NNEstimationCSM
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+ results: []
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+
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+ ---
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+
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+
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+ ## Model Overview
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+
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+ Joint Deep Model-Based MR Image and Coil Sensitivity Reconstruction Network (JointICNet) for 5x & 10x accelerated MRI Reconstruction on the CC359 dataset.
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+
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+
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+ ## ATOMMIC: Training
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+
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+ To train, fine-tune, or test the model you will need to install [ATOMMIC](https://github.com/wdika/atommic). We recommend you install it after you've installed latest Pytorch version.
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+ ```
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+ pip install atommic['all']
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+ ```
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+
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+ ## How to Use this Model
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+
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+ The model is available for use in ATOMMIC, and can be used as a pre-trained checkpoint for inference or for fine-tuning on another dataset.
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+
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+ Corresponding configuration YAML files can be found [here](https://github.com/wdika/atommic/tree/main/projects/REC/CC359/conf).
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+
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+ ### Automatically instantiate the model
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+
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+ ```base
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+ pretrained: true
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+ checkpoint: https://huggingface.co/wdika/REC_JointICNet_CC359_12_channel_poisson2d_5x_10x_NNEstimationCSM/blob/main/REC_JointICNet_CC359_12_channel_poisson2d_5x_10x_NNEstimationCSM.atommic
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+ mode: test
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+ ```
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+
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+ ### Usage
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+
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+ You need to download the CC359 dataset to effectively use this model. Check the [CC359](https://github.com/wdika/atommic/blob/main/projects/REC/CC359/README.md) page for more information.
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+
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+
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+ ## Model Architecture
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+ ```base
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+ model:
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+ model_name: JointICNet
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+ num_iter: 2
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+ kspace_unet_num_filters: 16
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+ kspace_unet_num_pool_layers: 2
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+ kspace_unet_dropout_probability: 0.0
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+ kspace_unet_padding_size: 11
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+ kspace_unet_normalize: true
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+ imspace_unet_num_filters: 16
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+ imspace_unet_num_pool_layers: 2
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+ imspace_unet_dropout_probability: 0.0
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+ imspace_unet_padding_size: 11
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+ imspace_unet_normalize: true
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+ sens_unet_num_filters: 16
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+ sens_unet_num_pool_layers: 2
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+ sens_unet_dropout_probability: 0.0
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+ sens_unet_padding_size: 11
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+ sens_unet_normalize: true
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+ dimensionality: 2
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+ ```
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+
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+ ## Training
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+ ```base
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+ optim:
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+ name: adamw
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+ lr: 1e-4
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+ betas:
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+ - 0.9
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+ - 0.999
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+ weight_decay: 0.0
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+ sched:
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+ name: CosineAnnealing
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+ min_lr: 0.0
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+ last_epoch: -1
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+ warmup_ratio: 0.1
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+
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+ trainer:
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+ strategy: ddp_find_unused_parameters_false
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+ accelerator: gpu
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+ devices: 1
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+ num_nodes: 1
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+ max_epochs: 20
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+ precision: 16-mixed
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+ enable_checkpointing: false
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+ logger: false
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+ log_every_n_steps: 50
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+ check_val_every_n_epoch: -1
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+ max_steps: -1
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+ ```
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+
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+ ## Performance
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+
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+ To compute the targets using the raw k-space and the chosen coil combination method, accompanied with the chosen coil sensitivity maps estimation method, you can use [targets](https://github.com/wdika/atommic/tree/main/projects/REC/CC359/conf/targets) configuration files.
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+
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+ Evaluation can be performed using the [evaluation](https://github.com/wdika/atommic/blob/main/tools/evaluation/reconstruction.py) script for the reconstruction task, with --evaluation_type per_slice.
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+
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+ Results
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+ -------
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+
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+ Evaluation against RSS targets
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+ ------------------------------
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+ 5x: MSE = 0.001306 +/- 0.001178 NMSE = 0.02018 +/- 0.02082 PSNR = 29.28 +/- 3.99 SSIM = 0.8719 +/- 0.06531
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+
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+ 10x: MSE = 0.002043 +/- 0.001908 NMSE = 0.03181 +/- 0.03297 PSNR = 27.36 +/- 4.101 SSIM = 0.8278 +/- 0.0864
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+
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+
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+ ## Limitations
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+
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+ This model was trained on the CC359 using a UNet coil sensitivity maps estimation and might differ from the results reported on the challenge leaderboard.
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+
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+
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+ ## References
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+
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+ [1] [ATOMMIC](https://github.com/wdika/atommic)
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+
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+ [2] Beauferris, Y., Teuwen, J., Karkalousos, D., Moriakov, N., Caan, M., Yiasemis, G., Rodrigues, L., Lopes, A., Pedrini, H., Rittner, L., Dannecker, M., Studenyak, V., Gröger, F., Vyas, D., Faghih-Roohi, S., Kumar Jethi, A., Chandra Raju, J., Sivaprakasam, M., Lasby, M., … Souza, R. (2022). Multi-Coil MRI Reconstruction Challenge—Assessing Brain MRI Reconstruction Models and Their Generalizability to Varying Coil Configurations. Frontiers in Neuroscience, 16. https://doi.org/10.3389/fnins.2022.919186