# Export a volume to DICOM format - missing metadata
**URL:** https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182
**Category:** Support
**Created:** [February 25, 2022, 4:17pm UTC](https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182 "2022-02-25T16:17:44Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)
#### Post date: [February 25, 2022, 4:17pm UTC](https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182/1 "2022-02-25T16:17:44Z")
I followed the example from [Export a volume to DICOM file format](https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html#export-a-volume-to-dicom-file-format).
It successfully exported a volume, however, when I load the exported DICOM back to Slicer the study and patient name are missing:
Maybe I misunderstood something, but I thought that in this tree ‘test patient’ and ‘test study’ (as specified in the script repository) would appear.
MacOS, 3D Slicer 4.13.0-2022-02-16
---
### Author:  [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)
#### Post date: [March 3, 2022, 2:15pm UTC](https://discourse.slicer.org/t/export-a-volume-to-dicom-format-missing-metadata/22182/2 "2022-03-03T14:15:44Z")
Turns out DICOM tags have to be set explicitly with:
```auto
exp.setTag('PatientID', patient_id)
```
The information is not automatically taken from the hierarchy tree.
I added an explanation to the DOCs in this [pull request](https://github.com/Slicer/Slicer/pull/6238)