# \#segment-statistics

**URL:** https://discourse.slicer.org/tag/segment-statistics/149.md

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## [How to find the volume of a segmentation node whose master representation is closed surface representation](https://discourse.slicer.org/t/how-to-find-the-volume-of-a-segmentation-node-whose-master-representation-is-closed-surface-representation/44738)

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**Author:** [@Victor\_Wayne](https://discourse.slicer.org/u/Victor_Wayne)\
**Replies:** 2\
**Last updated:** [October 16, 2025, 9:00am UTC](https://discourse.slicer.org/t/how-to-find-the-volume-of-a-segmentation-node-whose-master-representation-is-closed-surface-representation/44738 "2025-10-16T09:00:03Z")

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Hello, I want to find the volume of a segmentation node with closed surface representation. How can I do that using segment statistics module? I have found an example in script repository but I think it is only applicab…

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## [A thank you from a novice user and motivated brain cancer patient](https://discourse.slicer.org/t/a-thank-you-from-a-novice-user-and-motivated-brain-cancer-patient/44559)

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**Author:** [@OligoStu](https://discourse.slicer.org/u/OligoStu)\
**Replies:** 1\
**Last updated:** [September 23, 2025, 12:40pm UTC](https://discourse.slicer.org/t/a-thank-you-from-a-novice-user-and-motivated-brain-cancer-patient/44559 "2025-09-23T12:40:40Z")

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I’m writing a note of thanks to the developers and community after having found 3D slicer earlier this year and learning how to use it to get a fuller understanding from my routine MRIs to track progress of my brain tumo…

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## [OBB Corner Coordinates and/or Dimensions](https://discourse.slicer.org/t/obb-corner-coordinates-and-or-dimensions/44176)

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**Author:** [@liam26](https://discourse.slicer.org/u/liam26)\
**Replies:** 3\
**Last updated:** [August 23, 2025, 11:19pm UTC](https://discourse.slicer.org/t/obb-corner-coordinates-and-or-dimensions/44176 "2025-08-23T23:19:11Z")

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I’m trying to find the dimensions of my OBB box (width, length, height) to get the height of spinal discs. Even getting the corner coordinates would be helpful so I could calculate it manually. I can’t find an existing s…

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## [New Segment Statistics: Oriented Bounding Box, Diameter and More](https://discourse.slicer.org/t/new-segment-statistics-oriented-bounding-box-diameter-and-more/10203)

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**Author:** [@Sunderlandkyl](https://discourse.slicer.org/u/Sunderlandkyl)\
**Replies:** 5\
**Last updated:** [July 21, 2023, 5:50pm UTC](https://discourse.slicer.org/t/new-segment-statistics-oriented-bounding-box-diameter-and-more/10203 "2023-07-21T17:50:32Z")

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New statistics have been added to the Segment Statistics module: Centroid Oriented bounding box Feret diameter Perimeter Roundness Flatness Elongation Principal axes/moments These statistics are not enabled by default…

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## [Segment surface calculation](https://discourse.slicer.org/t/segment-surface-calculation/35655)

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**Author:** [@FraP](https://discourse.slicer.org/u/FraP)\
**Replies:** 3\
**Last updated:** [April 22, 2024, 1:52pm UTC](https://discourse.slicer.org/t/segment-surface-calculation/35655 "2024-04-22T13:52:29Z")

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I am using this script to determine the volume and surface area of my segments. segmentationNode = getNode("Segmentation") # Compute segment statistics import SegmentStatistics segStatLogic = SegmentStatistics.SegmentS…

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## [Unable to compute the ferret diameter on segmentation from totalsegmentator](https://discourse.slicer.org/t/unable-to-compute-the-ferret-diameter-on-segmentation-from-totalsegmentator/35623)

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**Author:** [@Matteboo](https://discourse.slicer.org/u/Matteboo)\
**Replies:** 3\
**Last updated:** [April 19, 2024, 3:15pm UTC](https://discourse.slicer.org/t/unable-to-compute-the-ferret-diameter-on-segmentation-from-totalsegmentator/35623 "2024-04-19T15:15:29Z")

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Hello, I did the following step : Load “CT Chest” from the sample data module Segment it using totalsegmentator (task total, fast mode activated) Compute the statistic using the “Segment Statistics” module, it’…

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## [How to calculate surface only on one slide (2D) ?](https://discourse.slicer.org/t/how-to-calculate-surface-only-on-one-slide-2d/31358)

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**Author:** [@jancel](https://discourse.slicer.org/u/jancel)\
**Replies:** 0\
**Last updated:** [August 25, 2023, 1:26pm UTC](https://discourse.slicer.org/t/how-to-calculate-surface-only-on-one-slide-2d/31358 "2023-08-25T13:26:17Z")

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Hi, i a m new on 3D slicer. I already managed to creat segment on my ROI. Now i just want to calculate the surface on one axial image (so in 2D). How can i do that ? Thanks all

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## [Two different volumes of the same segment](https://discourse.slicer.org/t/two-different-volumes-of-the-same-segment/28539)

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**Author:** [@Nuria\_Gallego\_Fndz](https://discourse.slicer.org/u/Nuria_Gallego_Fndz)\
**Replies:** 0\
**Last updated:** [March 23, 2023, 12:00pm UTC](https://discourse.slicer.org/t/two-different-volumes-of-the-same-segment/28539 "2023-03-23T12:00:10Z")

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Hi everyone! I’m trying to calculate the volume of different segments in the same scene. When I use the “segment statistics” I obtain a table with 2 differents values of volume of the same segment. (screenshot below) Do…

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## [Using segment statistics outside of 3D Slicer](https://discourse.slicer.org/t/using-segment-statistics-outside-of-3d-slicer/28292)

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**Author:** [@LDulz](https://discourse.slicer.org/u/LDulz)\
**Replies:** 1\
**Last updated:** [March 11, 2023, 5:55am UTC](https://discourse.slicer.org/t/using-segment-statistics-outside-of-3d-slicer/28292 "2023-03-11T05:55:34Z")

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Does anybody know if its possible to use SegmentStatistics as standalone feature outside of 3DSlicer? I’ve used TotalSegmentator e.g. bc it was available as an individual repo and with those segmentations id like to cal…

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## [PET Volume statistics](https://discourse.slicer.org/t/pet-volume-statistics/21495)

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**Author:** [@MPhilip](https://discourse.slicer.org/u/MPhilip)\
**Replies:** 0\
**Last updated:** [January 17, 2022, 4:15pm UTC](https://discourse.slicer.org/t/pet-volume-statistics/21495 "2022-01-17T16:15:23Z")

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Operating system: Windows 10 enterprise Slicer version:Slicer 4.13.0-2021-12-15 Hi I am using ‘segment statistics’ to calculate PET volume parameters. PET volume statistics like SUVmax, SUVmin, SUVpeak appears as bel…

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## [Output of calculated specific values of a model for individual ROIs](https://discourse.slicer.org/t/output-of-calculated-specific-values-of-a-model-for-individual-rois/21148)

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**Author:** [@MaKe](https://discourse.slicer.org/u/MaKe)\
**Replies:** 4\
**Last updated:** [January 6, 2022, 4:10pm UTC](https://discourse.slicer.org/t/output-of-calculated-specific-values-of-a-model-for-individual-rois/21148 "2022-01-06T16:10:54Z")

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Operating system: Windows 10 Slicer version: 4.11 Hi everyone, I am currently working with 3D Slicer and would like to output specific values within different ROIs of a calculated model as a mean value. For this I hav…

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## [How do I programmatically allow segment volumes from different segmentations to be shown in one table in the segment statistics module?](https://discourse.slicer.org/t/how-do-i-programmatically-allow-segment-volumes-from-different-segmentations-to-be-shown-in-one-table-in-the-segment-statistics-module/19725)

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**Author:** [@akshay\_pillai](https://discourse.slicer.org/u/akshay_pillai)\
**Replies:** 4\
**Last updated:** [September 21, 2021, 5:46pm UTC](https://discourse.slicer.org/t/how-do-i-programmatically-allow-segment-volumes-from-different-segmentations-to-be-shown-in-one-table-in-the-segment-statistics-module/19725 "2021-09-21T17:46:51Z")

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I know that we can use the segment statistics, module to get the volume of individual segments inside a segmentation in a table. How do I programmatically make it add volumes of segments in different segmentations? I wou…

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## [Segment statistics fail in Test with no window mode](https://discourse.slicer.org/t/segment-statistics-fail-in-test-with-no-window-mode/12976)

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**Author:** [@Alex\_Vergara](https://discourse.slicer.org/u/Alex_Vergara)\
**Replies:** 1\
**Last updated:** [August 13, 2020, 6:17pm UTC](https://discourse.slicer.org/t/segment-statistics-fail-in-test-with-no-window-mode/12976 "2020-08-13T18:17:25Z")

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I have a case where I have several segmentations and I need to test each of them in no window mode (test mode) The normal way to do this is to disable all of them and the enable just the one I am testing, this is done w…

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## [Export two aligned STL model from Meshlab to SLICER3D for deviation Measurement](https://discourse.slicer.org/t/export-two-aligned-stl-model-from-meshlab-to-slicer3d-for-deviation-measurement/8264)

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**Author:** [@ss\_sabz](https://discourse.slicer.org/u/ss_sabz)\
**Replies:** 2\
**Last updated:** [September 5, 2019, 12:03pm UTC](https://discourse.slicer.org/t/export-two-aligned-stl-model-from-meshlab-to-slicer3d-for-deviation-measurement/8264 "2019-09-05T12:03:33Z")

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Hi: I need to find Deviation between two STL model points, So i found this link: How to compare/quantify (populate) two .stl models having shape difference to see result as color stl file and bar telling plus and minus…

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## [Inclusion Criteria For Voxels on Segment Statistics](https://discourse.slicer.org/t/inclusion-criteria-for-voxels-on-segment-statistics/5652)

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**Author:** [@Nassir](https://discourse.slicer.org/u/Nassir)\
**Replies:** 2\
**Last updated:** [February 7, 2019, 3:46pm UTC](https://discourse.slicer.org/t/inclusion-criteria-for-voxels-on-segment-statistics/5652 "2019-02-07T15:46:50Z")

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Hi all, I’m using segment statistics to use some MRI-defined segments to export some quantitative PET data. This usually works pretty well, but does not work if my segmentation is small (less than half the PET voxel vol…

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## [Scalar Volume Units?](https://discourse.slicer.org/t/scalar-volume-units/3405)

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**Author:** [@Masteling](https://discourse.slicer.org/u/Masteling)\
**Replies:** 3\
**Last updated:** [July 6, 2018, 8:17pm UTC](https://discourse.slicer.org/t/scalar-volume-units/3405 "2018-07-06T20:17:26Z")

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Hi all, When using the segment statistics module, besides the volume we get the minimum, maximum, mean and standard deviation of the segmentation. What are the units of the latest (min, max, means, std)? In the case o…