Convert EPI to SCT

Understanding the EPI and SCT file formats

EPI files are typically associated with Bruker ParaVision MRI systems and contain Echo Planar Imaging data. These files store raw or reconstructed MRI images, often used in medical imaging research and diagnostics.

SCT files, on the other hand, are Scanco Medical CT files, commonly used for micro-CT (computed tomography) data. SCT files store volumetric image data and metadata, primarily for bone and tissue analysis in biomedical research.

Why convert EPI to SCT?

Converting EPI to SCT is necessary when you need to analyze MRI data using software or workflows designed for micro-CT data, or when integrating MRI and CT datasets for comparative studies.

How to convert EPI to SCT

Direct conversion between EPI and SCT is not natively supported by most imaging software, as they are specialized formats. The typical workflow involves converting EPI files to a more common format (such as DICOM or TIFF), and then importing or converting that format to SCT using Scanco software or compatible tools.

Recommended software for conversion

• ImageJ/Fiji: Open-source image processing software that can import EPI files (with plugins) and export to formats like TIFF or DICOM. Use File → Open to load EPI, then File → Save As → TIFF or File → Save As → DICOM.
• Scanco Medical software: Proprietary software that can import DICOM or TIFF stacks and export to SCT. Use File → Import to load the intermediate format, then File → Export → SCT.
• 3D Slicer: Free, open-source platform for medical image informatics. Import EPI (via DICOM or NIfTI conversion), then export as a compatible format for SCT conversion.

Step-by-step conversion process

1. Use ImageJ/Fiji to open your EPI file.
2. Export the image stack as TIFF or DICOM using File → Save As.
3. Open the exported file in Scanco Medical software or a compatible tool.
4. Export or save the data as an SCT file using File → Export → SCT.

Tips and considerations

• Ensure that image orientation and voxel size are preserved during conversion.
• Check for data loss or artifacts after each conversion step.
• Consult your imaging facility or software vendor for specific plugins or scripts if direct conversion is needed.

Summary

While there is no direct one-step EPI to SCT converter, using ImageJ/Fiji and Scanco Medical software in sequence provides a reliable workflow for converting MRI EPI data to the SCT format for micro-CT analysis.