But it doesn’t modify. I know that there is a ‘setTag’ method in pydicom but I dont know with which object can I use it. I have checked the Script repository but I haven’t seen anything that I can use. If anyone can help me it would be great.
DICOM standard does not let you modify an instance that was made available outside your software. No modification of an existing instance is allowed, because an instance UID must uniquely identify the entire content. Therefore, if you received a DICOM file from somewhere and want to make changes then you must create a new instance (with new instance UIDs), preferably add references to the original UIDs, and then hide or delete the original version.
The DICOM patcher in Slicer can modify an instance without regenerating UIDs, but this is for cases when the input data has already violated the DICOM standard.
Ok, I haven’t been working on it lately but I have started again. I searched and i didn’t find anything about creating a new instance from the DICOM file I originally had. Is it possible? Being able to create a duplicate with a different UID and some other different parameters would solve my problem.