mr-jaemin/GEtensor-app

GEHC diffusion tensor tools

🎈 GE Diffusion tensor App (beta)

View/Convert GE tensor to bval/bvec

by Jaemin Shin

The GEtensor-app is a web-based tool created with Python and Streamlit to facilitate the viewing and conversion of GE diffusion tensor files in a user-friendly format. The app provides an intuitive summary of b-values, such as:

• b= 0 x 8
• b= 500 x 6
• b= 1000 x 15
• b= 2000 x 15
• b= 3000 x 60

It also presents b-vectors in a structured table format, and allows users to convert the data to FSL's bval/bvec format for download.

GE's diffusion gradient directions, including FSL bvec format, are rotation invariant. This means that no matter the scanning orientation—whether it's double-oblique, straight axial, head-first, or feet-first—the b-vectors stay the same, as long as the frequency encoding direction doesn’t change.

You may find this app particularly useful if you need:

• An intuitive display of b-values from a tensor file.
• Conversion of GE tensor data to FSL bval/bvec format.
• A case when only tensor file is available, without access to valid DICOM files.

See in action, How to run it

Screenshots

How to run it locally

1. Install the requirements

   $ pip install -r requirements.txt
   

2. Run the app

   $ streamlit run streamlit_app.py