Difference between revisions of "CALAMITI"
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*{{pub| author = L. Zuo, B.E. Dewey, A. Carass, Y. Liu, Y. He, P.A. Calabresi, and J.L. Prince| title = [https://arxiv.org/abs/2103.13283 Information-based Disentangled Representation Learning for Unsupervised MR Harmonization]| conf = ipmi2021}} | *{{pub| author = L. Zuo, B.E. Dewey, A. Carass, Y. Liu, Y. He, P.A. Calabresi, and J.L. Prince| title = [https://arxiv.org/abs/2103.13283 Information-based Disentangled Representation Learning for Unsupervised MR Harmonization]| conf = ipmi2021}} | ||
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{{h3|Software}} | {{h3|Software}} | ||
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CALAMITI requires the following preprocessing steps: | CALAMITI requires the following preprocessing steps: | ||
* N4 inhomogeneity correction. | * N4 inhomogeneity correction. | ||
| − | * Registration to MNI space (0.8mm isotropic resolution is ideal. Image | + | * Registration to MNI space (0.8mm isotropic resolution is ideal. Image dimension after MNI registration is 241*288*241). |
* White matter peak normalization (see https://github.com/jcreinhold/intensity-normalization). | * White matter peak normalization (see https://github.com/jcreinhold/intensity-normalization). | ||
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└──SiteB_T2w_SUB*_ORIENTATION_SLICE*.nii.gz | └──SiteB_T2w_SUB*_ORIENTATION_SLICE*.nii.gz | ||
| − | {{h4|Sample command}} | + | {{h4|Sample command and dependencies}} |
| − | + | * After downloading the code, sample command for CALAMITI training and testing (encoding and decoding) is provided under <code>"script"</code> folder. | |
| + | * Conda environment can be downloaded {{iacl|~lianrui/calamiti/calamiti.yml|here}}. | ||
| − | If you have other questions regarding the method or software, please email Lianrui Zuo at <code>lr_zuo@jhu.edu | + | If you have other questions regarding the method or software, please email Lianrui Zuo at <code>lr_zuo@jhu.edu |
Revision as of 19:13, 5 September 2021
<meta name="title" content="CALAMITI"/>
Contrast Anatomy Learning and Analysis for MR Intensity Translation and Integration (CALAMITI)
Contrast Anatomy Learning and Analysis for MR Intensity Translation and Integration (CALAMITI) is our current MR harmonization method. It was designed to achieve unsupervised multi-site MR harmonization. The associated publication is:
- L. Zuo, B.E. Dewey, A. Carass, Y. Liu, Y. He, P.A. Calabresi, and J.L. Prince, "Information-based Disentangled Representation Learning for Unsupervised MR Harmonization", 27th Conference on Information Processing in Medical Imaging (IPMI 2021), Virtually in Bornholm, Denmark, June 28 - July 2, 2021.
Software
| CALAMITI (2D) | 220k |
Instructions
Preprocessing
CALAMITI requires the following preprocessing steps:
- N4 inhomogeneity correction.
- Registration to MNI space (0.8mm isotropic resolution is ideal. Image dimension after MNI registration is 241*288*241).
- White matter peak normalization (see https://github.com/jcreinhold/intensity-normalization).
Prepare training
CALAMITI requires paired multi-contrast MR images (e.g., T1-w and T2-w) during training. The ideal structure of the data directory and naming convention are as follows:
├──absolute_path_to_data
├──SiteA
| ├──train
| | ├──SiteA_T1w_SUB*_ORIENTATION_SLICE*.nii.gz ("ORIENTATION" should be "AXIAL", "CORONAL", or "SAGITTAL")
| | └──SiteA_T2w_SUB*_ORIENTATION_SLICE*.nii.gz
| └──valid
| ├──SiteA_T1w_SUB*_ORIENTATION_SLICE*.nii.gz
| └──SiteA_T2w_SUB*_ORIENTATION_SLICE*.nii.gz
└──SiteB
├──train
| ├──SiteB_T1w_SUB*_ORIENTATION_SLICE*.nii.gz
| └──SiteB_T2w_SUB*_ORIENTATION_SLICE*.nii.gz
└──valid
├──SiteB_T1w_SUB*_ORIENTATION_SLICE*.nii.gz
└──SiteB_T2w_SUB*_ORIENTATION_SLICE*.nii.gz
Sample command and dependencies
- After downloading the code, sample command for CALAMITI training and testing (encoding and decoding) is provided under
"script"folder. - Conda environment can be downloaded here.
If you have other questions regarding the method or software, please email Lianrui Zuo at lr_zuo@jhu.edu
