# How to cut multivolume dicom into single ones?
**URL:** https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570
**Category:** Support
**Tags:** dicom, multivolume
**Created:** [May 11, 2021, 1:34pm UTC](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570 "2021-05-11T13:34:47Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Mikolaj\_Drab](https://discourse.slicer.org/u/Mikolaj_Drab)
#### Post date: [May 11, 2021, 1:34pm UTC](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570/1 "2021-05-11T13:34:47Z")
Operating system: Windows 10
Slicer version: 4.11
Expected behavior: I load multivolume (contrast enhaced dyn) dicom to make a subtraction.
Actual behavior: When the multivolume dicom is loaded, Slicer only shows the first frame (without contrast) and I can’t find how to even see what other frames look like not mention to make subtraction.
Can anyone help me?
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### Author:  [@JanWitowski](https://discourse.slicer.org/u/JanWitowski)
#### Post date: [May 11, 2021, 6:54pm UTC](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570/2 "2021-05-11T18:54:41Z")
A few things that would help to understand this problem:
1. When you go to your DICOM browser → select “Advanced” → Examine, do you get a list of sequences that you can select? A screenshot would be helpful
2. Try loading your study as a volume sequence (Application Settings → DICOM → Preferred multi-volume import format)
3. You can also try [dcm2niix](https://github.com/rordenlab/dcm2niix), I remember it was being recommended around here for converting multiframe DICOM to nifti/nrrd and then loading that format
4. If it’s possible, sharing a sample anonymized study with us would be helpful in troubleshooting
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### Author:  [@lassoan](https://discourse.slicer.org/u/lassoan)
#### Post date: [May 13, 2021, 6:16am UTC](https://discourse.slicer.org/t/how-to-cut-multivolume-dicom-into-single-ones/17570/3 "2021-05-13T06:16:17Z")
I would recommend to load 4D volumes as volume sequences as @JanWitowski described above and then use the toolbar to browse frames. You can display multiple timepoints of the same volume sequence by creating a new browser node in Sequences module.
You can find step-by-step instructions for computing motion-compensated subtraction for segmentation of small vessels in this [segmentation recipe](https://lassoan.github.io/SlicerSegmentationRecipes/VesselSegmentationBySubtraction/).
Note that you may also browse or access frames and perform operations on them using numpy as shown in [examples in the script repository](https://slicer.readthedocs.io/en/latest/developer_guide/script_repository.html#sequences).