What it does
dcm2niix converts neuroimaging DICOM data to NIfTI and can generate BIDS JSON sidecars. The official repository provides source and points to compiled desktop distributions.
dcm2niix reads a DICOM folder and writes NIfTI images with optional BIDS JSON sidecars for research metadata. Set the output folder, compression and names assembled from protocol, acquisition time or series number. NIfTI requires equidistant slices, so source geometry must fit that model. Codec support is build-dependent: JPEG-LS/JPEG2000 and gzip/Zstandard are optional. Windows, macOS and Linux builds are listed. Review identifying metadata separately from the image-format change.
Strengths
- Produces NIfTI output with research-oriented JSON metadata.
Watch out for
- NIfTI imposes representation constraints, including equidistant slices.
Best for
- Preparing neuroimaging research datasets for NIfTI tools