I am doing a small radiomics study on clinical patients. The way I did it is imported dicom via “Load Data” in 3d Slicer and then saved the volume and segmentation as nrrd files. After that I did a batch processing. So I compared the feature values with Load dicom and then extracted features directly from Slicer 3D. Some of the features are quite different (even doubling the values), I tried then importing to nrrd again and using python script to extract features it is again different from one from 3D slicer. So the feature values depend on which format I used to extract from? which one is the correct way, is it because some infomration is lost in converting to nrrd format?