Export ROI as DICOM & NiFTI?

Does Slicer have the ability to segment an MRI & export the ROI in both DICOM & NiFTI file formats?

I’m using Slicer version 4.10.2 on Mac.

Thanks!

Yes, you can segment using Segment Editor module and export to DICOM using DICOM module.

I would recommend to save segmentation into nrrd format and not nifti, but if you must use nifti then you can export segmentation to labelmap volume (right-click on it in Data module) and you can save the resulting labelmap as nifti.