# \#data-loading

**URL:** https://discourse.slicer.org/tag/data-loading/434.md

[Latest](https://discourse.slicer.org/latest.md) · [Categories](https://discourse.slicer.org/categories.md) · [Tags](https://discourse.slicer.org/tags.md)

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## [The Add Data button is not working properly](https://discourse.slicer.org/t/the-add-data-button-is-not-working-properly/44557)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 3\
**Last updated:** [November 28, 2025, 6:32am UTC](https://discourse.slicer.org/t/the-add-data-button-is-not-working-properly/44557 "2025-11-28T06:32:02Z")

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So, when I click the Add Data button, it opens the file dialog box and I am able to load MRIs perfectly. But if I close the file dialog box without loading any MRML or MRI files and then try to open it again the file dia…

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## [Unable to Import Lumafield NRRD file](https://discourse.slicer.org/t/unable-to-import-lumafield-nrrd-file/44566)

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**Author:** [@mchon](https://discourse.slicer.org/u/mchon)\
**Replies:** 5\
**Last updated:** [September 30, 2025, 6:01pm UTC](https://discourse.slicer.org/t/unable-to-import-lumafield-nrrd-file/44566 "2025-09-30T18:01:40Z")

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Operating system: Windows 10 Slicer version: 5.8.1 Expected behavior: Load NRRD file as volume Actual behavior: Error loading data. Does not recognize NRRD file. We use a X-Ray CT from a local startup called Lumafiel…

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## [Loading GPA results from geomorph into Slicermorph?](https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982)

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**Author:** [@stineblom](https://discourse.slicer.org/u/stineblom)\
**Replies:** 1\
**Last updated:** [March 6, 2025, 4:25pm UTC](https://discourse.slicer.org/t/loading-gpa-results-from-geomorph-into-slicermorph/41982 "2025-03-06T16:25:07Z")

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Hi community, I have created a dataset of 499 pseudolandmarks for 107 bones using ALPACA. I compared the GPA+PCA results from geomorph and Slicermorph and noticed that geomorph describes ~10% more variance along PC1, po…

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## [how to open a Dataset of 2D xrays in PNG format ? ](https://discourse.slicer.org/t/how-to-open-a-dataset-of-2d-xrays-in-png-format/41066)

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**Author:** [@rihabu](https://discourse.slicer.org/u/rihabu)\
**Replies:** 0\
**Last updated:** [January 14, 2025, 12:56am UTC](https://discourse.slicer.org/t/how-to-open-a-dataset-of-2d-xrays-in-png-format/41066 "2025-01-14T00:56:02Z")

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hello , i have a dataset of spine xrays (2D) in PNG format , i want to annotate them using 3d slicer and monai label , but i cant load the image in i found that converting tthe dataset to nifti .nii might be a solution …

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## [Issues loading Python script and .mrb file](https://discourse.slicer.org/t/issues-loading-python-script-and-mrb-file/41012)

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**Author:** [@Symon](https://discourse.slicer.org/u/Symon)\
**Replies:** 1\
**Last updated:** [January 9, 2025, 4:24pm UTC](https://discourse.slicer.org/t/issues-loading-python-script-and-mrb-file/41012 "2025-01-09T16:24:06Z")

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Hi, I’m new to 3D Slicer and I have somme issues with it. I have DICOM files that I load to 3D Slicer (no problem there). These are CT-Scan Dynamic with 247 images (7.8Go for the DICOM file). I saved my work in a “.mr…

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## [Custom file reader without 'Add data into scene' dialog](https://discourse.slicer.org/t/custom-file-reader-without-add-data-into-scene-dialog/39858)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 10\
**Last updated:** [October 30, 2024, 9:06pm UTC](https://discourse.slicer.org/t/custom-file-reader-without-add-data-into-scene-dialog/39858 "2024-10-30T21:06:27Z")

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I’m writing a Python Scripted Module and I want to create a custom data loading functionality. What I want to achieve is to drag a folder into the scene and for Slicer to load the content automatically, according to som…

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## [Slow loading dicom CT slices (~300)](https://discourse.slicer.org/t/slow-loading-dicom-ct-slices-300/36209)

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**Author:** [@tenzin\_kunkyab](https://discourse.slicer.org/u/tenzin_kunkyab)\
**Replies:** 8\
**Last updated:** [May 17, 2024, 8:34pm UTC](https://discourse.slicer.org/t/slow-loading-dicom-ct-slices-300/36209 "2024-05-17T20:34:41Z")

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Hi, I wanted to ask if its normal to take couple of minutes to load CT volume of about 300 slices? I used to drag + drop, which took long, so importing dicom files was quick. But then loading the actual CT volume to vi…

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## [Loading volume of several hundred GB](https://discourse.slicer.org/t/loading-volume-of-several-hundred-gb/35615)

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**Author:** [@cpinter](https://discourse.slicer.org/u/cpinter)\
**Replies:** 7\
**Last updated:** [April 22, 2024, 1:43pm UTC](https://discourse.slicer.org/t/loading-volume-of-several-hundred-gb/35615 "2024-04-22T13:43:27Z")

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Hi all, I feel like this topic should have come up over the years but I couldn’t find anything (search on discourse is awful…). What options do we have in Slicer if we want to load a volume of industrial CT that is sev…

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## [Control point grid output from NiftyReg not loaded correctly](https://discourse.slicer.org/t/control-point-grid-output-from-niftyreg-not-loaded-correctly/34967)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 1\
**Last updated:** [March 21, 2024, 7:59am UTC](https://discourse.slicer.org/t/control-point-grid-output-from-niftyreg-not-loaded-correctly/34967 "2024-03-21T07:59:23Z")

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I’m integrating NiftyReg into an extension. I registered two images with f3d and saved the control point grid (to later get the deformation). However, the grid isn’t loaded correctly into Slicer. In the Data module it …

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## [Long loading time for DICOM folder. ](https://discourse.slicer.org/t/long-loading-time-for-dicom-folder/34915)

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**Author:** [@Frederik](https://discourse.slicer.org/u/Frederik)\
**Replies:** 1\
**Last updated:** [March 15, 2024, 6:52pm UTC](https://discourse.slicer.org/t/long-loading-time-for-dicom-folder/34915 "2024-03-15T18:52:21Z")

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Dear 3D Slicer Team. We are a small team who are currently segmenting and annotating data from a larger dataset containing CT Thorax DICOM containing Lung Nodules. First of all, we would like to express our gratitude. …

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## [Sorting data by type and name in Scene](https://discourse.slicer.org/t/sorting-data-by-type-and-name-in-scene/34499)

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**Author:** [@S\_Motch\_Perrine](https://discourse.slicer.org/u/S_Motch_Perrine)\
**Replies:** 7\
**Last updated:** [February 23, 2024, 5:15pm UTC](https://discourse.slicer.org/t/sorting-data-by-type-and-name-in-scene/34499 "2024-02-23T17:15:31Z")

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I have a large number of files in my Scene, and would like to have them ordered by name. I’m sure there’s got to be a way to do this quickly, but I either can’t remember or find it quickly. Example… my files are all name…

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## [Missing exception handling](https://discourse.slicer.org/t/missing-exception-handling/34473)

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**Author:** [@Heiko\_Stark](https://discourse.slicer.org/u/Heiko_Stark)\
**Replies:** 1\
**Last updated:** [February 22, 2024, 3:56pm UTC](https://discourse.slicer.org/t/missing-exception-handling/34473 "2024-02-22T15:56:40Z")

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Slicer is not able to load a malformed nii.gz file in 5.6.1, which is possible with version 4.8. Missing error message: only visible in logging window and cryptic. A meaningful error message or more tolerant loading woul…

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## [Add data fails in linux (wayland).](https://discourse.slicer.org/t/add-data-fails-in-linux-wayland/27571)

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**Author:** [@umgpy](https://discourse.slicer.org/u/umgpy)\
**Replies:** 4\
**Last updated:** [November 10, 2023, 7:29pm UTC](https://discourse.slicer.org/t/add-data-fails-in-linux-wayland/27571 "2023-11-10T19:29:15Z")

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The data loading module fails after the first time and results in a blank window. Only way to fix it is to restart Slicer. My platform is Fedora 36 (linux) with wayland. Slicer version - Slicer-5.3.0-2023-01-28 I’m at…

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## [How to import ASCII file into 3DSlicer?](https://discourse.slicer.org/t/how-to-import-ascii-file-into-3dslicer/32332)

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**Author:** [@iwangwangwang](https://discourse.slicer.org/u/iwangwangwang)\
**Replies:** 0\
**Last updated:** [October 20, 2023, 3:51am UTC](https://discourse.slicer.org/t/how-to-import-ascii-file-into-3dslicer/32332 "2023-10-20T03:51:57Z")

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How to import ASCII file ( with column ‘X Y Z Value’ ) into 3DSlicer? or how to import point data into a slicer ?

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## [How to solve loading problems in adding DICOM data](https://discourse.slicer.org/t/how-to-solve-loading-problems-in-adding-dicom-data/30864)

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**Author:** [@yumin](https://discourse.slicer.org/u/yumin)\
**Replies:** 2\
**Last updated:** [July 28, 2023, 7:37pm UTC](https://discourse.slicer.org/t/how-to-solve-loading-problems-in-adding-dicom-data/30864 "2023-07-28T19:37:22Z")

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Hi everyone! I am new to 3D slicer, and I encountered some problems in loading the data. I wonder do I need to fix the code (which I don’t know how…). It would be great if someone can help! Many thanks! Could not load: …

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## [Applying the same data description with one click when loading multiple files](https://discourse.slicer.org/t/applying-the-same-data-description-with-one-click-when-loading-multiple-files/30289)

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**Author:** [@jhlegarreta](https://discourse.slicer.org/u/jhlegarreta)\
**Replies:** 13\
**Last updated:** [July 3, 2023, 4:52pm UTC](https://discourse.slicer.org/t/applying-the-same-data-description-with-one-click-when-loading-multiple-files/30289 "2023-07-03T16:52:31Z")

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Hi, when loading multiple files, is there a way to load them all as, say "FiberBundle"s with a single click, i.e. without needing to chose “FiberBundle” for every individual file? If yes, what is the way to do this? Th…

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## [Problems with openning TIFF by loading .log document on SkyScanReconImport module](https://discourse.slicer.org/t/problems-with-openning-tiff-by-loading-log-document-on-skyscanreconimport-module/26898)

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**Author:** [@Nuria\_Gallego\_Fndz](https://discourse.slicer.org/u/Nuria_Gallego_Fndz)\
**Replies:** 10\
**Last updated:** [February 13, 2023, 8:35am UTC](https://discourse.slicer.org/t/problems-with-openning-tiff-by-loading-log-document-on-skyscanreconimport-module/26898 "2023-02-13T08:35:08Z")

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Hi everyone! I’m trying to open a .log document on SkyScanReconImport module but when I try it it doesn’t work. On the python console appear some annotations (photo attached) but I don’t understand what does it mean. …

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## [Opening Downloaded '.mrml' Files](https://discourse.slicer.org/t/opening-downloaded-mrml-files/26351)

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**Author:** [@JacobD](https://discourse.slicer.org/u/JacobD)\
**Replies:** 2\
**Last updated:** [January 11, 2023, 9:51pm UTC](https://discourse.slicer.org/t/opening-downloaded-mrml-files/26351 "2023-01-11T21:51:04Z")

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Regarding ‘.mrml’ files downloaded from a Google Drive folder, when attempting to load them to view completed segmentations, the segmentation does not appear, and only a section of the scanned image appears. When attemp…

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## [PNG data loading into correct orientation](https://discourse.slicer.org/t/png-data-loading-into-correct-orientation/25078)

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**Author:** [@Jojo\_yee88188](https://discourse.slicer.org/u/Jojo_yee88188)\
**Replies:** 2\
**Last updated:** [September 5, 2022, 7:07am UTC](https://discourse.slicer.org/t/png-data-loading-into-correct-orientation/25078 "2022-09-05T07:07:38Z")

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Hi all, I have a quick question about loading png data into the correct orientation. My png data are pelvic MRI in axial, sagittal, and coronal orientation in a separate folder. Therefore, I loaded each plane into the 3…

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## [Incorrect DICOM import](https://discourse.slicer.org/t/incorrect-dicom-import/23029)

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**Author:** [@Boris33](https://discourse.slicer.org/u/Boris33)\
**Replies:** 0\
**Last updated:** [April 19, 2022, 6:10pm UTC](https://discourse.slicer.org/t/incorrect-dicom-import/23029 "2022-04-19T18:10:33Z")

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Hello, I’m just getting started with 3D Slicer (4.11) and I have problems loading correctly my DICOM volume. The data is acquired from a Siemens CT scanner as IMA files and stacked with a pattern 1.1, 1.2, … 1.200 (1 se…

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## [Loading nrrd data in python Jupyter notebook script](https://discourse.slicer.org/t/loading-nrrd-data-in-python-jupyter-notebook-script/22637)

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**Author:** [@Hanne1234](https://discourse.slicer.org/u/Hanne1234)\
**Replies:** 7\
**Last updated:** [April 12, 2022, 4:49pm UTC](https://discourse.slicer.org/t/loading-nrrd-data-in-python-jupyter-notebook-script/22637 "2022-04-12T16:49:51Z")

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Hi, I am new working with the PyRadiomics package and I have a very basic question. How to load in the data in the Jupyter Notebook script? I used 3D slicer to perform a segmentation on a PET image and I want to load t…

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## ["Adding data failed" message when opening MRML file](https://discourse.slicer.org/t/adding-data-failed-message-when-opening-mrml-file/22801)

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**Author:** [@DIV](https://discourse.slicer.org/u/DIV)\
**Replies:** 7\
**Last updated:** [April 4, 2022, 5:57am UTC](https://discourse.slicer.org/t/adding-data-failed-message-when-opening-mrml-file/22801 "2022-04-04T05:57:39Z")

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I have gotten a handful of “adding data failed” “Adding data failed” messages lately when opening individual MRML Scene files. The problematic Scene files would have been created with somewhat older versions of 3D Slice…

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## [Loading pickled data](https://discourse.slicer.org/t/loading-pickled-data/21087)

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**Author:** [@koeglfryderyk](https://discourse.slicer.org/u/koeglfryderyk)\
**Replies:** 3\
**Last updated:** [December 17, 2021, 4:02pm UTC](https://discourse.slicer.org/t/loading-pickled-data/21087 "2021-12-17T16:02:25Z")

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I want to load pickled data from the GUI in my custom extension. When using the ‘Add data’ dialog to try to load such data, Slicer throws an error (Error - load failed). As a workaround, I thought I could use the ‘Add …