# \#4d

**URL:** https://discourse.slicer.org/tag/4d/411.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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## [Correct workflow for loading 4D CT cardiac data](https://discourse.slicer.org/t/correct-workflow-for-loading-4d-ct-cardiac-data/48121)

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**Author:** [@arumiat](https://discourse.slicer.org/u/arumiat)\
**Replies:** 4\
**Last updated:** [September 14, 2026, 8:41am UTC](https://discourse.slicer.org/t/correct-workflow-for-loading-4d-ct-cardiac-data/48121 "2026-09-14T08:41:53Z")

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Hi Slicer Community, I have a .nii file which is a 4D-gated cardiac CT but I am struggling to load it in Slicer in a way whereby I can watch the heart beating. Is there a specific workflow I need to follow. So far I ha…

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## [Displace the axes idependently of the plane + navigate in time (4D-flow MRI dataset) + coding preset in python](https://discourse.slicer.org/t/displace-the-axes-idependently-of-the-plane-navigate-in-time-4d-flow-mri-dataset-coding-preset-in-python/47080)

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**Author:** [@jceb](https://discourse.slicer.org/u/jceb)\
**Replies:** 0\
**Last updated:** [May 19, 2026, 12:33pm UTC](https://discourse.slicer.org/t/displace-the-axes-idependently-of-the-plane-navigate-in-time-4d-flow-mri-dataset-coding-preset-in-python/47080 "2026-05-19T12:33:20Z")

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Dear 3D Slicer community First many thanks to developers and maintainers of this incredible software. I am working with 4D flow MRI datasets and have the following questions (if needed I can post separate questions) …

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## [Multiple organs segmentation in a MRI sequence?](https://discourse.slicer.org/t/multiple-organs-segmentation-in-a-mri-sequence/46699)

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**Author:** [@koperkill](https://discourse.slicer.org/u/koperkill)\
**Replies:** 0\
**Last updated:** [April 9, 2026, 1:36pm UTC](https://discourse.slicer.org/t/multiple-organs-segmentation-in-a-mri-sequence/46699 "2026-04-09T13:36:47Z")

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Hello, For a DCE-MRI study, I would like to extract the signal intensity, through time, for a dozen organs and regions of the upper body. I have successfully built a time sequence using my 40 volumes in time, drawn a s…

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## [2D cine not playing when converted to nifti from dicom](https://discourse.slicer.org/t/2d-cine-not-playing-when-converted-to-nifti-from-dicom/45555)

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**Author:** [@Nshehata](https://discourse.slicer.org/u/Nshehata)\
**Replies:** 0\
**Last updated:** [December 19, 2025, 12:48pm UTC](https://discourse.slicer.org/t/2d-cine-not-playing-when-converted-to-nifti-from-dicom/45555 "2025-12-19T12:48:40Z")

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Operating system: Linux also MacOS Slicer version: 5.8.1 Expected behavior: Play button to be enabled when importing as DICOM Actual behavior: Play button disabled and fixed on one slice only I thought maybe the prob…

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## [How to Convert .mhd + .raw 3D Time-Series Images into a 4D DICOM in 3D Slicer?](https://discourse.slicer.org/t/how-to-convert-mhd-raw-3d-time-series-images-into-a-4d-dicom-in-3d-slicer/44280)

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**Author:** [@sprp2025uci](https://discourse.slicer.org/u/sprp2025uci)\
**Replies:** 1\
**Last updated:** [August 30, 2025, 4:12am UTC](https://discourse.slicer.org/t/how-to-convert-mhd-raw-3d-time-series-images-into-a-4d-dicom-in-3d-slicer/44280 "2025-08-30T04:12:02Z")

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Hi, I am working with publicly available 3D echocardiographic datasets stored as .mhd + .raw files, along with corresponding .vtk mesh files for each time frame. I would like to convert these into a single 4D DICOM (cin…

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## [Multivolume Explorer gives error in 5.4 version,  so does module "sequences" allows to plot time intensity charts from multivolume datasets? ](https://discourse.slicer.org/t/multivolume-explorer-gives-error-in-5-4-version-so-does-module-sequences-allows-to-plot-time-intensity-charts-from-multivolume-datasets/31834)

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**Author:** [@Jakub.Otahal](https://discourse.slicer.org/u/Jakub.Otahal)\
**Replies:** 4\
**Last updated:** [June 10, 2025, 3:50pm UTC](https://discourse.slicer.org/t/multivolume-explorer-gives-error-in-5-4-version-so-does-module-sequences-allows-to-plot-time-intensity-charts-from-multivolume-datasets/31834 "2025-06-10T15:50:40Z")

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Hello everybody, I have used for long time Multivolume Importer and Explorer to view and analyse DCE datasets in Slicer 4.11. Today when I come back to that with new 5.4 version of Slicer I realized that the Multivolume…

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## [Sequence Registration - problem with menu](https://discourse.slicer.org/t/sequence-registration-problem-with-menu/41294)

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**Author:** [@eNable\_Polska](https://discourse.slicer.org/u/eNable_Polska)\
**Replies:** 5\
**Last updated:** [March 11, 2025, 1:09am UTC](https://discourse.slicer.org/t/sequence-registration-problem-with-menu/41294 "2025-03-11T01:09:55Z")

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Hello I came across a problem that I can’t solve. I have a sequential angioCT scan. I would like to make a 4D animation based on this scan. I found a tutorial https://youtu.be/qVgXdXEEVFU?si=ODlaC4UDf2wQ3bCW up to 0:56…

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## [Is there a way to register 2D+t cines?](https://discourse.slicer.org/t/is-there-a-way-to-register-2d-t-cines/27510)

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**Author:** [@Gening\_Dong](https://discourse.slicer.org/u/Gening_Dong)\
**Replies:** 4\
**Last updated:** [February 3, 2023, 7:55pm UTC](https://discourse.slicer.org/t/is-there-a-way-to-register-2d-t-cines/27510 "2023-02-03T19:55:14Z")

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Hi, I’ve been using sequence registration to register image stacks and it works well! Now I have a series of 2D+t ultrasound cines (DICOM files). Since it’s 2D+t, I’m not able to import those files as volumes and perfor…

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## [Displacement field invertion and mean operation](https://discourse.slicer.org/t/displacement-field-invertion-and-mean-operation/31698)

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**Author:** [@Zimogre](https://discourse.slicer.org/u/Zimogre)\
**Replies:** 0\
**Last updated:** [September 14, 2023, 9:05am UTC](https://discourse.slicer.org/t/displacement-field-invertion-and-mean-operation/31698 "2023-09-14T09:05:05Z")

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Hi all, I have some questions about the inverse of transformations and the application of mathematical operations on them. I am recently working with a time series of volumes that, first, I have transformed into a sequ…

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## [Loosing 4th dimension after segmentation ](https://discourse.slicer.org/t/loosing-4th-dimension-after-segmentation/29881)

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**Author:** [@chopraamhk](https://discourse.slicer.org/u/chopraamhk)\
**Replies:** 4\
**Last updated:** [June 12, 2023, 2:13pm UTC](https://discourse.slicer.org/t/loosing-4th-dimension-after-segmentation/29881 "2023-06-12T14:13:58Z")

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Hi, My original nifti file is having 4dimensions , i.e., ( 196, 240, 100, 1). I have done segmentation in 3d slicer using 2 labels, and after saving the segmented file, it is giving me output as 3d. My new dimensions ar…

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## [Loading 3d cine from cardiac MR](https://discourse.slicer.org/t/loading-3d-cine-from-cardiac-mr/26665)

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**Author:** [@RGhosh](https://discourse.slicer.org/u/RGhosh)\
**Replies:** 2\
**Last updated:** [December 9, 2022, 7:14pm UTC](https://discourse.slicer.org/t/loading-3d-cine-from-cardiac-mr/26665 "2022-12-09T19:14:09Z")

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I am having trouble loading a 3d cine from cardiac MR, specifically one obtained using a Phillips scanner. Despite choosing “volume sequence” in Edit–\>settings–\>DICOM, it does not load properly. Instead of each “instance…

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## [Export of SequenceRegistration output: save each individual transformed Model](https://discourse.slicer.org/t/export-of-sequenceregistration-output-save-each-individual-transformed-model/25761)

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**Author:** [@scarpma](https://discourse.slicer.org/u/scarpma)\
**Replies:** 2\
**Last updated:** [October 19, 2022, 3:01pm UTC](https://discourse.slicer.org/t/export-of-sequenceregistration-output-save-each-individual-transformed-model/25761 "2022-10-19T15:01:16Z")

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Hello, I run SequenceRegistration module on a 4d cardiac CT. As a result i have a sequence of transformations. I apply the transformations to a segmentation node or to a surface model. How can I save these two as nrrd …

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## [Segmentation Mask/STL generation/Editing of all phases in a 4D Cardiac MRI dataset](https://discourse.slicer.org/t/segmentation-mask-stl-generation-editing-of-all-phases-in-a-4d-cardiac-mri-dataset/25199)

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**Author:** [@Yue-Hin\_Loke](https://discourse.slicer.org/u/Yue-Hin_Loke)\
**Replies:** 3\
**Last updated:** [September 23, 2022, 1:32am UTC](https://discourse.slicer.org/t/segmentation-mask-stl-generation-editing-of-all-phases-in-a-4d-cardiac-mri-dataset/25199 "2022-09-23T01:32:12Z")

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Hi there, I have used the Segment Registration Module to create a moving mask (whole heart and/or atrium + ventricle) of the 4D Cardiac MRI dataset. I was able to follow most of the discussion from here: Load multiple c…

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## [Automatic segmentation of sequences in time](https://discourse.slicer.org/t/automatic-segmentation-of-sequences-in-time/20756)

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**Author:** [@Francesca\_Pittoni](https://discourse.slicer.org/u/Francesca_Pittoni)\
**Replies:** 18\
**Last updated:** [November 24, 2021, 7:33pm UTC](https://discourse.slicer.org/t/automatic-segmentation-of-sequences-in-time/20756 "2021-11-24T19:33:14Z")

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Hi everyone! I imported a 4D TAC scan (10 timeframes) in “volume sequence”, I created a segmentation node, segmenting the first timeframe (aorta) and created a new sequence, setting the correct proxy node. So, I was wo…

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## [Python script : Time series of 4D volume & loading synchronized nodes](https://discourse.slicer.org/t/python-script-time-series-of-4d-volume-loading-synchronized-nodes/17272)

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**Author:** [@valery](https://discourse.slicer.org/u/valery)\
**Replies:** 4\
**Last updated:** [April 23, 2021, 5:33pm UTC](https://discourse.slicer.org/t/python-script-time-series-of-4d-volume-loading-synchronized-nodes/17272 "2021-04-23T17:33:21Z")

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Hello, I’m playing with 4D data format and Slicer. I found lots of information on the forum but I’m looking for additional details. The final objective. To load multiple 4D nifti volume (3D+time) in the sequence module…

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## [4D volume import-modification-export](https://discourse.slicer.org/t/4d-volume-import-modification-export/16909)

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**Author:** [@Kalman](https://discourse.slicer.org/u/Kalman)\
**Replies:** 2\
**Last updated:** [April 14, 2021, 6:43am UTC](https://discourse.slicer.org/t/4d-volume-import-modification-export/16909 "2021-04-14T06:43:09Z")

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Hi, I’m interested in whether there is a possibility to import and modify 4D fMRI nifti files in the Slicer? A bit more explanation about the question: we are working with multivolume datasets, where one file contains s…