# Dicom import failed, what's wrong?

**URL:** <https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630>\
**Category:** Development\
**Tags:** dicom, python\
**Created:** [January 26, 2022, 8:12am UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630 "2022-01-26T08:12:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jumbojing](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jumbojing/32/10811_2.png) [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Post date:** [January 26, 2022, 8:12am UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630/1 "2022-01-26T08:12:02Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/2/6/26bd1815514355722c535a8f6c98e36eb5d5768a.jpeg)

Dicom import failed, what’s wrong?

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**Author:** ![Juicy](https://avatars.discourse-cdn.com/v4/letter/j/74df32/32.png) [@Juicy](https://discourse.slicer.org/u/Juicy)\
**Post date:** [January 26, 2022, 8:18am UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630/2 "2022-01-26T08:18:00Z")

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I see you have a heap of individual volumes for each slice in your CT DICOM stack. Have you used the DICOM module to import you images? Click on the small “DCM” icon in the top left of the Slicer window to go to the DICOM module. Then drag and drop the folder containing all your CT images into the slicer window to add the images into the DICOM module. Then click on the correct patient entry and click the Load button.

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**Author:** ![jumbojing](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jumbojing/32/10811_2.png) [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Post date:** [January 26, 2022, 8:32am UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630/3 "2022-01-26T08:32:48Z")

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![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/4/3421eff947eee5ab0a5051acbea2c0302f2594c7.png)

I use the **DCM** import the fold, but failed…how to combine them?

```auto
Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE_1
Imported a DICOM directory, checking for extensions
Geometric issues were found with 1 of the series. Please use caution.

Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE - imageOrientationPatient 1
Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE - imageOrientationPatient 2
Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE - imageOrientationPatient 3
Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE - imageOrientationPatient 4
Loading with imageIOName: GDCM
Window/level found in DICOM tags (center=40.0, width=400.0) has been applied to volume 300: L-S SPINE - imageOrientationPatient 5
Loading with imageIOName: GDCM
....

```

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**Author:** ![jumbojing](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jumbojing/32/10811_2.png) [@jumbojing](https://discourse.slicer.org/u/jumbojing)\
**Post date:** [January 26, 2022, 8:39am UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630/4 "2022-01-26T08:39:23Z")

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Or how to merge those single dicoms into one group dcm?

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**Author:** ![pieper](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/pieper/32/8_2.png) [@pieper](https://discourse.slicer.org/u/pieper)\
**Post date:** [January 26, 2022, 12:42pm UTC](https://discourse.slicer.org/t/dicom-import-failed-whats-wrong/21630/5 "2022-01-26T12:42:19Z")

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The names of the loaded data indicate that they are not parallel (orientation is different in each loaded section). Try the FAQ suggestions. You may be able to use geometry normalization or the patcher.

[https://slicer.readthedocs.io/en/latest/user\_guide/modules/dicom.html#troubleshooting](https://slicer.readthedocs.io/en/latest/user_guide/modules/dicom.html#troubleshooting)