# Centerline options and best way to measure arterial vessels?

**URL:** <https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234>\
**Category:** Support\
**Tags:** segmentation, dicom\
**Created:** [February 13, 2020, 3:09am UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234 "2020-02-13T03:09:38Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Romeo\_Guevara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romeo_guevara/32/3539_2.png) [@Romeo\_Guevara](https://discourse.slicer.org/u/Romeo_Guevara)\
**Post date:** [February 13, 2020, 3:09am UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/1 "2020-02-13T03:09:38Z")

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Good evening, how can I make the axial cut, when shown in the “3D only” follow the center line I made? that in order to measure the diameter of the vessels as well as possible.

![slicer centerline](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/1/1/1149914c2403cc7c18665a8d0747e05cb484225f.jpeg)

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 13, 2020, 4:20pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/2 "2020-02-13T16:20:44Z")

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We have developed a module that does this in SlicerHeart project, but we’ll make it public only when the associated paper is published. Until then, there are two modules that you can use to achieve this:

1. Create curved planar reformat volume and measure on that volume

> [@How to implement CPR (curved planar reconstruction) from centerline?](https://discourse.slicer.org/t/how-to-implement-cpr-curved-plannar-reconstruction-from-centerline/9456/7):
>
> Hi Andras, Sometimes people end up having to scan coiled snakes, or fish that are in little jars. Depending on what they need to do with it, they may have to ‘straighten’ the specimen. Is there a way this CPR can be generalized for such use cases? [image] [image]

1. Reslice the original volume along a curve using Endoscopy module

[![](https://img.youtube.com/vi/thExIlffL0I/maxresdefault.jpg "Curved multi-planar reconstruction (MPR) view in 3D Slicer") ](https://www.youtube.com/watch?v=thExIlffL0I)

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**Author:** ![Romeo\_Guevara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romeo_guevara/32/3539_2.png) [@Romeo\_Guevara](https://discourse.slicer.org/u/Romeo_Guevara)\
**Post date:** [February 14, 2020, 2:01pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/3 "2020-02-14T14:01:13Z")

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Good morning, I managed to make the centerline with the module “volume reslice driver” with the previous version, however in this new version “2020-02-11” the module “Endoscopy” does not recognize the pattern when using the "open curve markup "which is indispensable to see if the centerline is correct. Thanks for your help.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 16, 2020, 3:00pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/4 "2020-02-16T15:00:41Z")

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I’ve updated the Endoscopy module to also take markups curve as input (in Slicer Preview Release, available from tomorrow) to take. Endoscopy still creates an approximating curve, which slightly differs from the interpolating curve of markups curve, but as long as the points are equally spaced and curvatures are not too extreme then they should be close enough.

We’ll release a curve explorer module later that can use markups curves without approximation. Maybe we’ll merge it with the curve planar reformatting module.

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**Author:** ![Romeo\_Guevara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romeo_guevara/32/3539_2.png) [@Romeo\_Guevara](https://discourse.slicer.org/u/Romeo_Guevara)\
**Post date:** [February 17, 2020, 2:09pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/5 "2020-02-17T14:09:10Z")

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Good morning, Andrass, when I try to download the version 2020-02-17, I download the 2020-02-12, how can I download the newest version? Cheers

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**Author:** ![manjula](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manjula/32/80981_2.png) [@manjula](https://discourse.slicer.org/u/manjula)\
**Post date:** [February 17, 2020, 2:42pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/6 "2020-02-17T14:42:33Z")

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I had the same problem today !

> [@Linux Preview Release Download Points to old built - FYI](https://discourse.slicer.org/t/linux-preview-release-download-points-to-old-built-fyi/10308/2):
>
> The date in the file name is not actually the date it was built, but corresponds to the date when the most recent commit was merged. Therefore there hasn’t been any updates merged to Slicer since 2020-02-12.

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**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 17, 2020, 3:32pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/7 "2020-02-17T15:32:16Z")

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Date in the Slicer package reflects the date when Slicer core is last changed. If there are no changes in the core then the package date will remain the same.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/b/7/b7392f340511afc3eb1b7c776a0975d08b5326ea.png)

Changed extensions are still updated (you need to update or uninstall/reinstall in Extension Manager to get latest version if there was any change).

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/9/7/979b02130b08aa4fd040b36d2e64717bd7f2df71.png)

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**Author:** ![Romeo\_Guevara](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/romeo_guevara/32/3539_2.png) [@Romeo\_Guevara](https://discourse.slicer.org/u/Romeo_Guevara)\
**Post date:** [February 19, 2020, 1:30pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/8 "2020-02-19T13:30:24Z")

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Good night Andras, the “open curve markup” is not yet recognized by the “endoscopy” module in version 2020-02-17. Thank you for your help, where would I send you a personal email? regards.

 ![image](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/3/0/30fcdd80e5db99c4db531a15b62c9a6d10aaf402.png)

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<div class="post-metadata">

**Author:** ![lassoan](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lassoan/32/13_2.png) [@lassoan](https://discourse.slicer.org/u/lassoan)\
**Post date:** [February 19, 2020, 4:49pm UTC](https://discourse.slicer.org/t/centerline-options-and-best-way-to-measure-arterial-vessels/10234/9 "2020-02-19T16:49:31Z")

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I’ve merged this today (in rev28775). It should be avaiable in tomorrow’s Slicer Preview Release (or you can replace Endoscopy.py file in your Slicer installation by [this latest version](https://github.com/Slicer/Slicer/blob/master/Modules/Scripted/Endoscopy/Endoscopy.py)).