# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=389

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

**Page:** 390

---

## [Build Error:libpython2.7.so: undefined reference to \`minor](https://discourse.slicer.org/t/build-error-libpython2-7-so-undefined-reference-to-minor/6470)

<div class="topic-metadata">

**Author:** [@Ranglage](https://discourse.slicer.org/u/Ranglage)\
**Replies:** 1\
**Last updated:** [April 11, 2019, 2:38pm UTC](https://discourse.slicer.org/t/build-error-libpython2-7-so-undefined-reference-to-minor/6470 "2019-04-11T14:38:06Z")

</div>

When I build the latest Slicer source from Github I got these errors: \[ 43%\] Linking C shared library …/…/…/lib/python2.7/lib-dynload/\_hashlib.so \[ 44%\] Built target extension\_hashlib \[ 44%\] Linking C shared library …

---

## [Image Registration and Segmentation Across Modalities](https://discourse.slicer.org/t/image-registration-and-segmentation-across-modalities/6469)

<div class="topic-metadata">

**Author:** [@MSpindler](https://discourse.slicer.org/u/MSpindler)\
**Replies:** 0\
**Last updated:** [April 11, 2019, 2:01pm UTC](https://discourse.slicer.org/t/image-registration-and-segmentation-across-modalities/6469 "2019-04-11T14:01:24Z")

</div>

Dear Slicer community, i plan on doing slice-by-slice segmentation of subcortical structures using T1,T2, and diffusion direction information. I want to start by aligning the individual brain in the midsagittal plane an…

---

## [How to write STL from dicom slices](https://discourse.slicer.org/t/how-to-write-stl-from-dicom-slices/6468)

<div class="topic-metadata">

**Author:** [@selvakarna](https://discourse.slicer.org/u/selvakarna)\
**Replies:** 1\
**Last updated:** [April 11, 2019, 2:01pm UTC](https://discourse.slicer.org/t/how-to-write-stl-from-dicom-slices/6468 "2019-04-11T14:01:12Z")

</div>

---

## [Create a mesh in python script](https://discourse.slicer.org/t/create-a-mesh-in-python-script/1543)

<div class="topic-metadata">

**Author:** [@Frederic](https://discourse.slicer.org/u/Frederic)\
**Replies:** 37\
**Last updated:** [August 30, 2018, 11:36am UTC](https://discourse.slicer.org/t/create-a-mesh-in-python-script/1543 "2018-08-30T11:36:50Z")

</div>

Hi all, Is-it possible since a “head\_T1.nii” to mesh only the scalp by “Segment editor tool” from Python scripts? Thanks in advance, Frederic

---

## [CT Slice Thickness](https://discourse.slicer.org/t/ct-slice-thickness/6460)

<div class="topic-metadata">

**Author:** [@andrewreilly](https://discourse.slicer.org/u/andrewreilly)\
**Replies:** 1\
**Last updated:** [April 11, 2019, 12:34am UTC](https://discourse.slicer.org/t/ct-slice-thickness/6460 "2019-04-11T00:34:37Z")

</div>

Operating system: Windows 10 Slicer version: 4.10.1 Hi, I’m a newbie to Slicer so apologies in advance if what I’m asking is obvious to some of you. Please be gentle! I have a dataset that is a stack of CT slices, ea…

---

## [Exporting segmentation as dicom-RT](https://discourse.slicer.org/t/exporting-segmentation-as-dicom-rt/6451)

<div class="topic-metadata">

**Author:** [@willh113](https://discourse.slicer.org/u/willh113)\
**Replies:** 0\
**Last updated:** [April 10, 2019, 2:07pm UTC](https://discourse.slicer.org/t/exporting-segmentation-as-dicom-rt/6451 "2019-04-10T14:07:01Z")

</div>

Hi there, I’m totally new to slicer. All I’d like to do is generate ROI masks to be used by another program. They need to be of the ‘dicom-RT’ format. I’ve uploaded the CT as a dicom, and created a simple spherical segm…

---

## [one tensor missed after two-tensor tractography](https://discourse.slicer.org/t/one-tensor-missed-after-two-tensor-tractography/6370)

<div class="topic-metadata">

**Author:** [@mali](https://discourse.slicer.org/u/mali)\
**Replies:** 13\
**Last updated:** [April 10, 2019, 3:17am UTC](https://discourse.slicer.org/t/one-tensor-missed-after-two-tensor-tractography/6370 "2019-04-10T03:17:20Z")

</div>

Dear all, I used two-tensor tractography for my whole brain analysis and extracted several fiber tracts by drawing ROIs manually. Strangely, one fiber tract is now missing the first tensor in two scans although all of …

---

## [Volume Rendering Compressed in Scale](https://discourse.slicer.org/t/volume-rendering-compressed-in-scale/6446)

<div class="topic-metadata">

**Author:** [@Nicholas.jacobson](https://discourse.slicer.org/u/Nicholas.jacobson)\
**Replies:** 1\
**Last updated:** [April 9, 2019, 6:05pm UTC](https://discourse.slicer.org/t/volume-rendering-compressed-in-scale/6446 "2019-04-09T18:05:02Z")

</div>

Hi all, I am getting an error when loading a DICOM of CTA scans. The error asks to examine in Advanced Mode. The images in load well but the volume rendering appears to be compressed in the z-direction by about 3/4. Is …

---

## [Load python function without module; custom key binding](https://discourse.slicer.org/t/load-python-function-without-module-custom-key-binding/6421)

<div class="topic-metadata">

**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 2\
**Last updated:** [April 6, 2019, 6:38pm UTC](https://discourse.slicer.org/t/load-python-function-without-module-custom-key-binding/6421 "2019-04-06T18:38:32Z")

</div>

I have found the toggleZoomSync() user function quite useful. It works very well in the Python interactor. I wish to load it on start without creating a GUI module/extension. And also, create a keyboard shorcut (Meta+Z …

---

## [Liver segmentation from CT](https://discourse.slicer.org/t/liver-segmentation-from-ct/6413)

<div class="topic-metadata">

**Author:** [@Marco\_Festugato](https://discourse.slicer.org/u/Marco_Festugato)\
**Replies:** 5\
**Last updated:** [April 6, 2019, 1:41pm UTC](https://discourse.slicer.org/t/liver-segmentation-from-ct/6413 "2019-04-06T13:41:26Z")

</div>

Hi guys, I’m very new to 3D slicer…I have to segment the liver from 199 DICOM images of the same patient…do u have any example I could use to do this? I cant find much on the internet… Thank u!

---

## [mirroring Slicer](https://discourse.slicer.org/t/mirroring-slicer/6388)

<div class="topic-metadata">

**Author:** [@Ely\_B](https://discourse.slicer.org/u/Ely_B)\
**Replies:** 2\
**Last updated:** [April 6, 2019, 4:29am UTC](https://discourse.slicer.org/t/mirroring-slicer/6388 "2019-04-06T04:29:42Z")

</div>

Hi, I have a problem, I have to calculate the matrix that makes the centers of two mirrored images aligned. How should I proceed?

---

## [orthogonal planes/axes and angle measurement](https://discourse.slicer.org/t/orthogonal-planes-axes-and-angle-measurement/6183)

<div class="topic-metadata">

**Author:** [@clauzi](https://discourse.slicer.org/u/clauzi)\
**Replies:** 11\
**Last updated:** [April 5, 2019, 3:31pm UTC](https://discourse.slicer.org/t/orthogonal-planes-axes-and-angle-measurement/6183 "2019-04-05T15:31:52Z")

</div>

Operating system: Windows 7 Slicer version: 4.10.1 Expected behavior: unknown Actual behavior: unknown Is there a possibility in 3D Slicer to place orthogonal planes in a CT and measure angles between these and other…

---

## [Problem with the fiducials registry](https://discourse.slicer.org/t/problem-with-the-fiducials-registry/6398)

<div class="topic-metadata">

**Author:** [@VALENTINA\_RENDON\_GIR](https://discourse.slicer.org/u/VALENTINA_RENDON_GIR)\
**Replies:** 0\
**Last updated:** [April 4, 2019, 9:52pm UTC](https://discourse.slicer.org/t/problem-with-the-fiducials-registry/6398 "2019-04-04T21:52:36Z")

</div>

When I do the registration by fiducials I get this (error problem with the fiducials registry), as I do to solve the problem.

---

## [Fill between slices bug](https://discourse.slicer.org/t/fill-between-slices-bug/6338)

<div class="topic-metadata">

**Author:** [@roozbehshams](https://discourse.slicer.org/u/roozbehshams)\
**Replies:** 2\
**Last updated:** [April 4, 2019, 1:28pm UTC](https://discourse.slicer.org/t/fill-between-slices-bug/6338 "2019-04-04T13:28:44Z")

</div>

Hi, There seems to be a bug with fill between slices tool in the nightly version 4.11.0-2019-03-26. It was also in the nightly 3 days before that. The problem is the interpolated labelmap is inverted : To replicate…

---

## [MRI sequence information and bias correction](https://discourse.slicer.org/t/mri-sequence-information-and-bias-correction/6382)

<div class="topic-metadata">

**Author:** [@Ash\_Alarfaj](https://discourse.slicer.org/u/Ash_Alarfaj)\
**Replies:** 1\
**Last updated:** [April 3, 2019, 7:35pm UTC](https://discourse.slicer.org/t/mri-sequence-information-and-bias-correction/6382 "2019-04-03T19:35:54Z")

</div>

Hi 1.could I found sequence parameters of MRI? 2. how can enhance signal uniformity, which filter and how it works? thanks

---

## [Using 2JPGs to Create a 3D Image](https://discourse.slicer.org/t/using-2jpgs-to-create-a-3d-image/6383)

<div class="topic-metadata">

**Author:** [@Yoni\_Diamond](https://discourse.slicer.org/u/Yoni_Diamond)\
**Replies:** 0\
**Last updated:** [April 3, 2019, 1:10pm UTC](https://discourse.slicer.org/t/using-2jpgs-to-create-a-3d-image/6383 "2019-04-03T13:10:20Z")

</div>

Hi all, Im just recently returning to using SLicer and need to a way to create a 3D image from at least 2(doronal and saggital) and max 4 JPGs. This would be using a smartphone to capture images of a leg. I looked into …

---

## [Segment editor: Draw does not work if master volume and segmentation are under a linear transform](https://discourse.slicer.org/t/segment-editor-draw-does-not-work-if-master-volume-and-segmentation-are-under-a-linear-transform/6352)

<div class="topic-metadata">

**Author:** [@stephan](https://discourse.slicer.org/u/stephan)\
**Replies:** 3\
**Last updated:** [April 3, 2019, 2:08am UTC](https://discourse.slicer.org/t/segment-editor-draw-does-not-work-if-master-volume-and-segmentation-are-under-a-linear-transform/6352 "2019-04-03T02:08:30Z")

</div>

Version: 4.10.1 (Windows 10) Expected behavior: A segmentation and its master volume are under the same linear transform. When using the draw effect to segment, the segment appears where it is drawn (just like it does w…

---

## [Tractography - bad quality](https://discourse.slicer.org/t/tractography-bad-quality/6191)

<div class="topic-metadata">

**Author:** [@eNable\_Polska](https://discourse.slicer.org/u/eNable_Polska)\
**Replies:** 2\
**Last updated:** [April 2, 2019, 7:17pm UTC](https://discourse.slicer.org/t/tractography-bad-quality/6191 "2019-04-02T19:17:10Z")

</div>

Id like to ask you about resolution of my images. Sorry about my English We take MRI with tractography, GE machine. I saw the tractography made of this research and it looked good. Id like to build it in slicer, but I ca…

---

## [Segment editor extra effect not working with my custom Slicer version](https://discourse.slicer.org/t/segment-editor-extra-effect-not-working-with-my-custom-slicer-version/6347)

<div class="topic-metadata">

**Author:** [@imuy5733](https://discourse.slicer.org/u/imuy5733)\
**Replies:** 5\
**Last updated:** [April 2, 2019, 1:39pm UTC](https://discourse.slicer.org/t/segment-editor-extra-effect-not-working-with-my-custom-slicer-version/6347 "2019-04-02T13:39:35Z")

</div>

Hello, I installed the Segment editor extra effect. However, I get an error message like attached. The icons also seem to be incorrect. What can I do? Win10 Slicer 4.10.1 Extra effect 4.9

---

## [Dicom from the server](https://discourse.slicer.org/t/dicom-from-the-server/6349)

<div class="topic-metadata">

**Author:** [@n2018](https://discourse.slicer.org/u/n2018)\
**Replies:** 1\
**Last updated:** [April 2, 2019, 1:25pm UTC](https://discourse.slicer.org/t/dicom-from-the-server/6349 "2019-04-02T13:25:03Z")

</div>

Hi, Is it possible to download and upload data safely (through sftp) from my own sftp server through slicer interface?

---

## [Minimum header information for loading DICOM into same series](https://discourse.slicer.org/t/minimum-header-information-for-loading-dicom-into-same-series/6355)

<div class="topic-metadata">

**Author:** [@d4mir](https://discourse.slicer.org/u/d4mir)\
**Replies:** 1\
**Last updated:** [April 2, 2019, 1:22pm UTC](https://discourse.slicer.org/t/minimum-header-information-for-loading-dicom-into-same-series/6355 "2019-04-02T13:22:30Z")

</div>

Hi, I have a generally blank dicom header, (attached to images). I’m wondering what is the minimum number of fields to have to pull a set of images (135 different ones them) into the same series. When I import them in…

---

## [Extracting transfer function values after Volume rendering in 3D Slicer](https://discourse.slicer.org/t/extracting-transfer-function-values-after-volume-rendering-in-3d-slicer/6366)

<div class="topic-metadata">

**Author:** [@nish91](https://discourse.slicer.org/u/nish91)\
**Replies:** 1\
**Last updated:** [April 2, 2019, 12:25pm UTC](https://discourse.slicer.org/t/extracting-transfer-function-values-after-volume-rendering-in-3d-slicer/6366 "2019-04-02T12:25:31Z")

</div>

I render a NifTI volume using ‘Volume rendering’ module in 3D Slicer as shown in the figure below. However, I would like to replicate exactly the same using python and VTK without using 3D Slicer. For that I need to extr…

---

## [Surface Cut just places fiducials](https://discourse.slicer.org/t/surface-cut-just-places-fiducials/6350)

<div class="topic-metadata">

**Author:** [@chir.set](https://discourse.slicer.org/u/chir.set)\
**Replies:** 2\
**Last updated:** [April 1, 2019, 1:43pm UTC](https://discourse.slicer.org/t/surface-cut-just-places-fiducials/6350 "2019-04-01T13:43:01Z")

</div>

I’m following this tutorial. Surface Cut behaves differently by just placing fiducial points without linking them. No free form segment can be hence be created. Please see this screen capture. I’m using Slicer built on …

---

## [Export images with window width end level settings](https://discourse.slicer.org/t/export-images-with-window-width-end-level-settings/6348)

<div class="topic-metadata">

**Author:** [@n2018](https://discourse.slicer.org/u/n2018)\
**Replies:** 1\
**Last updated:** [April 1, 2019, 7:02am UTC](https://discourse.slicer.org/t/export-images-with-window-width-end-level-settings/6348 "2019-04-01T07:02:48Z")

</div>

Hi, could you please tell me if it is possible to export images from slicer with contrast settings? I adjust contrast but when I export these images and open them in other programs images look like previous one without…

---

## [Cardiac device simulator "tutorial"](https://discourse.slicer.org/t/cardiac-device-simulator-tutorial/6344)

<div class="topic-metadata">

**Author:** [@gptruncus](https://discourse.slicer.org/u/gptruncus)\
**Replies:** 0\
**Last updated:** [April 1, 2019, 1:54am UTC](https://discourse.slicer.org/t/cardiac-device-simulator-tutorial/6344 "2019-04-01T01:54:29Z")

</div>

Hello, Is there yet a tutorial for the “cardiac device simulator”? Greg

---

## [Is it possible to make a fine 3d model from 40 slices](https://discourse.slicer.org/t/is-it-possible-to-make-a-fine-3d-model-from-40-slices/6337)

<div class="topic-metadata">

**Author:** [@Rostislav\_Nadelyaev](https://discourse.slicer.org/u/Rostislav_Nadelyaev)\
**Replies:** 2\
**Last updated:** [March 31, 2019, 9:34am UTC](https://discourse.slicer.org/t/is-it-possible-to-make-a-fine-3d-model-from-40-slices/6337 "2019-03-31T09:34:37Z")

</div>

Hi! I have simple question. We have a bunch of series of MRI of a baby, but all of the series contain 40 slices tops. Is it possible to make a fine 3D model having that amount of slices or it’s just a waste of time? (the…

---

## [Problem in CBCT Volume Crop and Modeling into STL](https://discourse.slicer.org/t/problem-in-cbct-volume-crop-and-modeling-into-stl/6307)

<div class="topic-metadata">

**Author:** [@song](https://discourse.slicer.org/u/song)\
**Replies:** 4\
**Last updated:** [March 31, 2019, 5:51am UTC](https://discourse.slicer.org/t/problem-in-cbct-volume-crop-and-modeling-into-stl/6307 "2019-03-31T05:51:44Z")

</div>

Operating system: Window 10 (×64) Slicer version: 4.10.1 &; 4.8.1 Expected behavior: I am a graduate dental student and also new user of 3D Slicer. Now I expect to use 3D Slicer to crop the volume of hemi-mandible fro…

---

## [How to contour an organ with 3DSlicer without using RTSTRUCT from TPS?](https://discourse.slicer.org/t/how-to-contour-an-organ-with-3dslicer-without-using-rtstruct-from-tps/6335)

<div class="topic-metadata">

**Author:** [@MeryMB](https://discourse.slicer.org/u/MeryMB)\
**Replies:** 1\
**Last updated:** [March 30, 2019, 4:27pm UTC](https://discourse.slicer.org/t/how-to-contour-an-organ-with-3dslicer-without-using-rtstruct-from-tps/6335 "2019-03-30T16:27:48Z")

</div>

Hi Dear 3DSlicer’s developers and users I want to contour an organ manually with 3DSlicer? Produce RTSTRUCT with 3D Slicer! Is it possible or I have to do it in TPS and import it? Best Mery

---

## [Suggestion: Quicker scissor tool and Seed growing to split a segment in two parts](https://discourse.slicer.org/t/suggestion-quicker-scissor-tool-and-seed-growing-to-split-a-segment-in-two-parts/6006)

<div class="topic-metadata">

**Author:** [@Amine](https://discourse.slicer.org/u/Amine)\
**Replies:** 1\
**Last updated:** [March 30, 2019, 3:03am UTC](https://discourse.slicer.org/t/suggestion-quicker-scissor-tool-and-seed-growing-to-split-a-segment-in-two-parts/6006 "2019-03-30T03:03:11Z")

</div>

Hello, i would like to suggest two features that i found my way around but were very time consuming ( hopefully not so hard to code): Using the scissor tool to cut through a segment in 3d view (without drawing a full …

---

## [Create an Image Volume from a vtk model](https://discourse.slicer.org/t/create-an-image-volume-from-a-vtk-model/6328)

<div class="topic-metadata">

**Author:** [@siaeleni](https://discourse.slicer.org/u/siaeleni)\
**Replies:** 1\
**Last updated:** [March 30, 2019, 2:27am UTC](https://discourse.slicer.org/t/create-an-image-volume-from-a-vtk-model/6328 "2019-03-30T02:27:39Z")

</div>

Hello, I want to convert a vtk model to an Image volume. Which is the best module for this? Thanks

[Previous page](https://discourse.slicer.org/c/support/11.md?page=388)

[Next page](https://discourse.slicer.org/c/support/11.md?page=390)