# \#quantitative

**URL:** https://discourse.slicer.org/tag/quantitative/41.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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## [3D Slicer Tutorial Videos — Porosity Analysis, Image Registration & More 🚀](https://discourse.slicer.org/t/3d-slicer-tutorial-videos-porosity-analysis-image-registration-more/46198)

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**Author:** [@Academy.XRM](https://discourse.slicer.org/u/Academy.XRM)\
**Replies:** 2\
**Last updated:** [February 18, 2026, 2:25pm UTC](https://discourse.slicer.org/t/3d-slicer-tutorial-videos-porosity-analysis-image-registration-more/46198 "2026-02-18T14:25:31Z")

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Hi everyone, I’ve started a YouTube tutorial series focused on practical workflows in 3D Slicer, and I’d love to share it with the community here. So far, the videos cover topics such as: • Porosity analysis workflows …

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## [Clarification on Segment Statistics: Surface Area vs. Cross-Sectional Area (CSA) for Muscle Analysis](https://discourse.slicer.org/t/clarification-on-segment-statistics-surface-area-vs-cross-sectional-area-csa-for-muscle-analysis/45559)

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**Author:** [@GaetanoGazze](https://discourse.slicer.org/u/GaetanoGazze)\
**Replies:** 3\
**Last updated:** [December 30, 2025, 6:41pm UTC](https://discourse.slicer.org/t/clarification-on-segment-statistics-surface-area-vs-cross-sectional-area-csa-for-muscle-analysis/45559 "2025-12-30T18:41:31Z")

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Hi everyone, I am performing a quantitative body composition analysis on single-slice CT scans (at the D10 level) using the Segment Statistics module in 3D Slicer. I would like to clarify a methodological doubt to ensur…

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## [Quantifying Mouse Lung microCT Scans](https://discourse.slicer.org/t/quantifying-mouse-lung-microct-scans/14170)

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**Author:** [@DeeMos](https://discourse.slicer.org/u/DeeMos)\
**Replies:** 5\
**Last updated:** [August 18, 2025, 8:56pm UTC](https://discourse.slicer.org/t/quantifying-mouse-lung-microct-scans/14170 "2025-08-18T20:56:24Z")

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Hello. I have a series of mouse lung microCT scans that I’ve obtained using a Perkin Elmer microCT scanner. Using the DICOM files from these scans I am trying to quantify different aspects of the mouse lung; specifically…

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## [How to make AI software to mapping cortical bone thickness](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183)

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**Author:** [@EsraaIsmail95](https://discourse.slicer.org/u/EsraaIsmail95)\
**Replies:** 1\
**Last updated:** [June 2, 2025, 12:54am UTC](https://discourse.slicer.org/t/how-to-make-ai-software-to-mapping-cortical-bone-thickness/43183 "2025-06-02T00:54:10Z")

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Hello, I am a dentist and new user in this amazing software I want to make a artificial intelligence for mapping of cortical bone thickness Actually it is my thesis and this will be my research work for my master degre…

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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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## [Scalar-Weighted PCA](https://discourse.slicer.org/t/scalar-weighted-pca/40608)

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**Author:** [@francois](https://discourse.slicer.org/u/francois)\
**Replies:** 0\
**Last updated:** [December 10, 2024, 3:45pm UTC](https://discourse.slicer.org/t/scalar-weighted-pca/40608 "2024-12-10T15:45:43Z")

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Hello, I am looking at Foot CT scans. I have segmented each bone. I would like to compute the PCA axes of each bone, WEIGHTED with the scalar value of the voxels contained/overlapping each bone model. So the value for e…

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## [Questions about CT Scan Analysis for Muscle and Fat Evaluation Using 3D Slicer](https://discourse.slicer.org/t/questions-about-ct-scan-analysis-for-muscle-and-fat-evaluation-using-3d-slicer/37906)

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**Author:** [@marcelovoltani](https://discourse.slicer.org/u/marcelovoltani)\
**Replies:** 1\
**Last updated:** [August 15, 2024, 3:11pm UTC](https://discourse.slicer.org/t/questions-about-ct-scan-analysis-for-muscle-and-fat-evaluation-using-3d-slicer/37906 "2024-08-15T15:11:04Z")

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Hello, I am starting CT scan analyses to evaluate muscle and fat in different slices. I have some questions regarding the data extracted from 3D Slicer and would like some help. When a new segment is added to be analyz…

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## [How to measure the Aortic valve's annulus diameter(s), and the vertical distance between the annulus and the sinotubular junction by 3D Slicer and/or SlicaeHeart using cardiac CT scans?](https://discourse.slicer.org/t/how-to-measure-the-aortic-valves-annulus-diameter-s-and-the-vertical-distance-between-the-annulus-and-the-sinotubular-junction-by-3d-slicer-and-or-slicaeheart-using-cardiac-ct-scans/34405)

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**Author:** [@Arash](https://discourse.slicer.org/u/Arash)\
**Replies:** 0\
**Last updated:** [February 19, 2024, 7:02pm UTC](https://discourse.slicer.org/t/how-to-measure-the-aortic-valves-annulus-diameter-s-and-the-vertical-distance-between-the-annulus-and-the-sinotubular-junction-by-3d-slicer-and-or-slicaeheart-using-cardiac-ct-scans/34405 "2024-02-19T19:02:25Z")

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Please advise on how to measure the Aortic valve’s annulus diameter(s), and the vertical distance between the annulus and the sinotubular junction by 3D Slicer and/or SlicaeHeart using cardiac CT scans?

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## [Quantification, segmentation and Analyses of Aortic Valve Annulus and Leaflets using heart CT scans](https://discourse.slicer.org/t/quantification-segmentation-and-analyses-of-aortic-valve-annulus-and-leaflets-using-heart-ct-scans/34330)

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**Author:** [@Arash](https://discourse.slicer.org/u/Arash)\
**Replies:** 0\
**Last updated:** [February 14, 2024, 4:24pm UTC](https://discourse.slicer.org/t/quantification-segmentation-and-analyses-of-aortic-valve-annulus-and-leaflets-using-heart-ct-scans/34330 "2024-02-14T16:24:12Z")

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Dear all, I am new here and rally glad of getting to know this valuable software and the great community. I need your kind insightful advice in order to learn what are the best practices to measure the sizes, and segmen…

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## [How to analyze DCE-MRI data](https://discourse.slicer.org/t/how-to-analyze-dce-mri-data/622)

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**Author:** [@kirezgik](https://discourse.slicer.org/u/kirezgik)\
**Replies:** 51\
**Last updated:** [January 11, 2024, 11:41am UTC](https://discourse.slicer.org/t/how-to-analyze-dce-mri-data/622 "2024-01-11T11:41:11Z")

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Operating system: Microsoft Windows 7 Enterprise Slicer version: Slicer 4.7.0 nightly build Expected behavior: Quantitative analysis of DCE MRI and measuring parameters like K trans and fractional value Actual behavior:…

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## [Inquiry Regarding Measurement of Functional Tumor Volume in Breast using 3D Slicer](https://discourse.slicer.org/t/inquiry-regarding-measurement-of-functional-tumor-volume-in-breast-using-3d-slicer/31188)

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**Author:** [@thomas\_su](https://discourse.slicer.org/u/thomas_su)\
**Replies:** 3\
**Last updated:** [August 18, 2023, 12:36pm UTC](https://discourse.slicer.org/t/inquiry-regarding-measurement-of-functional-tumor-volume-in-breast-using-3d-slicer/31188 "2023-08-18T12:36:53Z")

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Dear 3D Slicer Community, Currently, I am delving into the realm of measuring Functional Tumor Volume (FTV) in breast tumors, along with parameters like Percentage of Enhancement (PE) and Signal Enhancement Ratio (SER).…

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## [ calculate the volume of cerebrospinal fluid and the volume of intracranial hemorrhage](https://discourse.slicer.org/t/calculate-the-volume-of-cerebrospinal-fluid-and-the-volume-of-intracranial-hemorrhage/29317)

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**Author:** [@duan](https://discourse.slicer.org/u/duan)\
**Replies:** 1\
**Last updated:** [May 6, 2023, 2:43pm UTC](https://discourse.slicer.org/t/calculate-the-volume-of-cerebrospinal-fluid-and-the-volume-of-intracranial-hemorrhage/29317 "2023-05-06T14:43:59Z")

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Excuse me, Can you help me？I have some questions.Can 3Dslicer calculate the volume of cerebrospinal fluid and the volume of intracranial hemorrhage? If it can be calculated, which section of 3Dslicer needs to be used? I …

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## [Total radioactivity within VOI](https://discourse.slicer.org/t/total-radioactivity-within-voi/24953)

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**Author:** [@samcyc](https://discourse.slicer.org/u/samcyc)\
**Replies:** 1\
**Last updated:** [April 20, 2023, 6:25am UTC](https://discourse.slicer.org/t/total-radioactivity-within-voi/24953 "2023-04-20T06:25:46Z")

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Hello all, I come to you for a question which I can’t find the answer on the forum or on internet. I want to know the total radioactivity within a volume of interest. All quantitative tools I found for 3D slicer (PET-I…

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## [Markups not moving with surface in Q3DC extension](https://discourse.slicer.org/t/markups-not-moving-with-surface-in-q3dc-extension/26932)

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**Author:** [@Annett](https://discourse.slicer.org/u/Annett)\
**Replies:** 3\
**Last updated:** [December 27, 2022, 10:19am UTC](https://discourse.slicer.org/t/markups-not-moving-with-surface-in-q3dc-extension/26932 "2022-12-27T10:19:36Z")

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In the new 5.2 version, when using Q3DC extension there is a problem. I have to take measurements on an .stl file. When you enter points for taking measurements, if you then use “transform” to move the object, the poin…

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## [Quantification based on centerline curve or centerline model?](https://discourse.slicer.org/t/quantification-based-on-centerline-curve-or-centerline-model/25676)

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**Author:** [@JBierens](https://discourse.slicer.org/u/JBierens)\
**Replies:** 4\
**Last updated:** [October 19, 2022, 7:59am UTC](https://discourse.slicer.org/t/quantification-based-on-centerline-curve-or-centerline-model/25676 "2022-10-19T07:59:53Z")

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I am wondering if the Centerline quantification table is based on the properties of the centerline model or centerline curves. Sometimes when I extract the centerline, I only get one centerline curve, that is only coveri…

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## [Centroid Voxel/Coordinates Intensity Value Measurement - Is it possible?](https://discourse.slicer.org/t/centroid-voxel-coordinates-intensity-value-measurement-is-it-possible/25218)

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**Author:** [@dokay1](https://discourse.slicer.org/u/dokay1)\
**Replies:** 1\
**Last updated:** [September 28, 2022, 2:43pm UTC](https://discourse.slicer.org/t/centroid-voxel-coordinates-intensity-value-measurement-is-it-possible/25218 "2022-09-28T14:43:26Z")

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I bumped into an issue I can’t seem to find a solution for. I have a large number (\>400) of segments for each I want to measure the intensity (essentially the anatomical location off an atlas) from the centroid voxel. I …

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## [Can I do segmentation and quantification on volume-rendering image?](https://discourse.slicer.org/t/can-i-do-segmentation-and-quantification-on-volume-rendering-image/23978)

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**Author:** [@user4](https://discourse.slicer.org/u/user4)\
**Replies:** 3\
**Last updated:** [June 21, 2022, 6:27pm UTC](https://discourse.slicer.org/t/can-i-do-segmentation-and-quantification-on-volume-rendering-image/23978 "2022-06-21T18:27:25Z")

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Hi all, I can use Segement Editor Module to make a segmentation in 2D view here Then, I can use Segement Statistics Module to do some quantitative things here. As the above results shown,I can get the Minimum,Max…

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## [Tracking changes in the lung CT](https://discourse.slicer.org/t/tracking-changes-in-the-lung-ct/23016)

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**Author:** [@ylcnkzy](https://discourse.slicer.org/u/ylcnkzy)\
**Replies:** 3\
**Last updated:** [April 20, 2022, 12:02pm UTC](https://discourse.slicer.org/t/tracking-changes-in-the-lung-ct/23016 "2022-04-20T12:02:46Z")

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Dear all, I am currently working on lung CT to evaluate the changes in lung tissue and tumor size. I have CT scans at 8 different time points such as Planning CT, Therapy Control CT, and Follow-up CTs. I want to use pl…

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## [Vessel Diameter from Centreline](https://discourse.slicer.org/t/vessel-diameter-from-centreline/22154)

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**Author:** [@jpainova](https://discourse.slicer.org/u/jpainova)\
**Replies:** 0\
**Last updated:** [February 24, 2022, 12:28pm UTC](https://discourse.slicer.org/t/vessel-diameter-from-centreline/22154 "2022-02-24T12:28:52Z")

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I’m trying to calculate the diameter of a vessel (segmented from DICOM) at any desired point in the model. I have used VMTK Extract Centreline to plot a centreline with \>200 points to allow for selection of the desired …

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## [Line profile : Intensity matching](https://discourse.slicer.org/t/line-profile-intensity-matching/11291)

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**Author:** [@Fritta](https://discourse.slicer.org/u/Fritta)\
**Replies:** 0\
**Last updated:** [April 24, 2020, 1:19pm UTC](https://discourse.slicer.org/t/line-profile-intensity-matching/11291 "2020-04-24T13:19:49Z")

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Hi, I’m using 3D Slicer to process two different images ( RT Dose volume and MRI volume ) of the same phantom and I would like to compare them in terms of relative intensity. In other words I would like to test if the i…

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## [Query on interpretation](https://discourse.slicer.org/t/query-on-interpretation/16639)

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**Author:** [@RadioQuest](https://discourse.slicer.org/u/RadioQuest)\
**Replies:** 4\
**Last updated:** [April 12, 2021, 9:02am UTC](https://discourse.slicer.org/t/query-on-interpretation/16639 "2021-04-12T09:02:26Z")

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Hi… I am working on a 2 groups of patients with different therapies in brain cancer. I carried out T2 MRI texture analysis for different ROI. In selected 10 features for heterogeneity (uniformity, TE, entropy, variance,…

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## [How to measure 3D volume's dimensions?](https://discourse.slicer.org/t/how-to-measure-3d-volumes-dimensions/1170)

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**Author:** [@Mohamed](https://discourse.slicer.org/u/Mohamed)\
**Replies:** 15\
**Last updated:** [December 10, 2019, 6:52am UTC](https://discourse.slicer.org/t/how-to-measure-3d-volumes-dimensions/1170 "2019-12-10T06:52:46Z")

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Operating system: Windows 10 Slicer version: 4.7.0-2017-09-21 Hi, I wanted to know how to measure the dimensions of the 3D volume data. For example the perimeter or mass. Thanks in advance.

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## [All yellow displacement field. MMI value](https://discourse.slicer.org/t/all-yellow-displacement-field-mmi-value/14793)

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**Author:** [@HodaGH](https://discourse.slicer.org/u/HodaGH)\
**Replies:** 0\
**Last updated:** [November 27, 2020, 6:42pm UTC](https://discourse.slicer.org/t/all-yellow-displacement-field-mmi-value/14793 "2020-11-27T18:42:55Z")

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Operating system: MacOS 10.14 Slicer version: 4.11.20200930 Hi all, I’m registering CT and MRI images of pelvis and completely new to Slicer . To get the MMI value, to be able to compare the registrations, I found in …

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## [STL models comparison](https://discourse.slicer.org/t/stl-models-comparison/11806)

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**Author:** [@danila](https://discourse.slicer.org/u/danila)\
**Replies:** 13\
**Last updated:** [June 2, 2020, 5:58pm UTC](https://discourse.slicer.org/t/stl-models-comparison/11806 "2020-06-02T17:58:44Z")

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Operating system: macOS Catalina v10.15 Slicer version: 4.10.2 Expected behavior: How to compare and analyse two STL models of the same patients at T1 and T2. Actual behavior: I have done a CBCT superimposition using …

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## [Is there an easy method to calculate the Cobb Angle using a 3D Slicer module?](https://discourse.slicer.org/t/is-there-an-easy-method-to-calculate-the-cobb-angle-using-a-3d-slicer-module/10189)

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**Author:** [@stevenagl12](https://discourse.slicer.org/u/stevenagl12)\
**Replies:** 1\
**Last updated:** [February 10, 2020, 6:18pm UTC](https://discourse.slicer.org/t/is-there-an-easy-method-to-calculate-the-cobb-angle-using-a-3d-slicer-module/10189 "2020-02-10T18:18:18Z")

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I have CT scans that contain the spine and am trying for an easy way to get the Cobb Angle using them.

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## [Segmentation and Quantification : validated publications for 3D Slicer](https://discourse.slicer.org/t/segmentation-and-quantification-validated-publications-for-3d-slicer/7542)

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**Author:** [@frederic\_panthier](https://discourse.slicer.org/u/frederic_panthier)\
**Replies:** 2\
**Last updated:** [July 12, 2019, 5:53am UTC](https://discourse.slicer.org/t/segmentation-and-quantification-validated-publications-for-3d-slicer/7542 "2019-07-12T05:53:45Z")

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Hi everyone, I’m developing a extension of 3DSlicer 4.10 for surgical planification in urolithiasis (Urology). My concern is about the valaidity of 3DSlicer’s ability to quantifiy segments. Is there any publication ye…

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## [Determine performance metrics](https://discourse.slicer.org/t/determine-performance-metrics/7370)

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**Author:** [@safa](https://discourse.slicer.org/u/safa)\
**Replies:** 6\
**Last updated:** [July 2, 2019, 2:00pm UTC](https://discourse.slicer.org/t/determine-performance-metrics/7370 "2019-07-02T14:00:48Z")

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can i determine performance metrics (Dice, Accuracy, sensitivity,…) with slicer ?

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## [Paranasal Sinuses Volume Calculate](https://discourse.slicer.org/t/paranasal-sinuses-volume-calculate/6120)

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**Author:** [@hozermd](https://discourse.slicer.org/u/hozermd)\
**Replies:** 1\
**Last updated:** [March 12, 2019, 6:38pm UTC](https://discourse.slicer.org/t/paranasal-sinuses-volume-calculate/6120 "2019-03-12T18:38:02Z")

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Hi, I want to measure the volume of each paranasal sinuses. Each one separately; Left, Right; sphenoid, ethmoid, maxillary, frontal sinus and total nasal cavity volume. I’ve tried many methods, extensions and programs. …