# Support

**URL:** https://discourse.slicer.org/c/support/11.md?page=381

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

**Page:** 382

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## [Regularization issue](https://discourse.slicer.org/t/regularization-issue/7142)

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**Author:** [@Jragher](https://discourse.slicer.org/u/Jragher)\
**Replies:** 5\
**Last updated:** [June 27, 2019, 1:54pm UTC](https://discourse.slicer.org/t/regularization-issue/7142 "2019-06-27T13:54:22Z")

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HI Slice Community, I have been struggling for certain amount of time regarding what I have understand to be regularization. I have a MRI of different areas encapsulated in one acquisition. I just would like to have “…

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## [Change preview of Grow from seeds effect](https://discourse.slicer.org/t/change-preview-of-grow-from-seeds-effect/7336)

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**Author:** [@Fernando](https://discourse.slicer.org/u/Fernando)\
**Replies:** 1\
**Last updated:** [June 27, 2019, 10:20am UTC](https://discourse.slicer.org/t/change-preview-of-grow-from-seeds-effect/7336 "2019-06-27T10:20:31Z")

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Hi all, I would like to change the preview of the Grow from seeds effect of the Segment Editor module from the default “fill only” to “outline only”. I dived into the code a bit and I think I need access to the previewN…

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## [Play Macro, Error](https://discourse.slicer.org/t/play-macro-error/2649)

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**Author:** [@tbest](https://discourse.slicer.org/u/tbest)\
**Replies:** 5\
**Last updated:** [June 27, 2019, 8:50am UTC](https://discourse.slicer.org/t/play-macro-error/2649 "2019-06-27T08:50:42Z")

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Hello everybody, I am trying to setup macros on a MacOS 10.13.4 using Slicer 4.8.1. As a first try I recorded a macro that only changes from the “Welcome to Slicer” module to the “Segment Editor” module. After recordin…

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## [Open dicom files having a JPEG transfert syntax](https://discourse.slicer.org/t/open-dicom-files-having-a-jpeg-transfert-syntax/7306)

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**Author:** [@Charles\_Gueunet](https://discourse.slicer.org/u/Charles_Gueunet)\
**Replies:** 3\
**Last updated:** [June 27, 2019, 5:13am UTC](https://discourse.slicer.org/t/open-dicom-files-having-a-jpeg-transfert-syntax/7306 "2019-06-27T05:13:45Z")

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I have a DICOM file with RGB pixel data, using a Lossless JPEG transfer syntax and I do not get slicer to open it. Does Slicer handle this kind of transfer syntax ? I know GDCM can handle these files.

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## [Setting the grayscale model maker location](https://discourse.slicer.org/t/setting-the-grayscale-model-maker-location/7319)

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**Author:** [@blackfish](https://discourse.slicer.org/u/blackfish)\
**Replies:** 1\
**Last updated:** [June 27, 2019, 4:18am UTC](https://discourse.slicer.org/t/setting-the-grayscale-model-maker-location/7319 "2019-06-27T04:18:10Z")

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OS: Win 10 Slicer version: 4.11 Expected behaviour: the model will inherit the spatial information (more specifically, the image origin) of the input volume Actual behaviour: the model appears at a random position and…

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## [Loading the shield with radiation field](https://discourse.slicer.org/t/loading-the-shield-with-radiation-field/7178)

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**Author:** [@aseman](https://discourse.slicer.org/u/aseman)\
**Replies:** 3\
**Last updated:** [June 25, 2019, 3:52pm UTC](https://discourse.slicer.org/t/loading-the-shield-with-radiation-field/7178 "2019-06-25T15:52:18Z")

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Slicer version: 4.10.1 Hi 3D Slicer experts and aIl I exported the RT Plan from treatment planning system (TPS) and for one of the radiation fields I have a shield . the shield points in Metadata of DCM in 3D Slicer a…

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## [Strange Window Layout](https://discourse.slicer.org/t/strange-window-layout/7301)

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**Author:** [@Lorensen](https://discourse.slicer.org/u/Lorensen)\
**Replies:** 9\
**Last updated:** [June 25, 2019, 3:39am UTC](https://discourse.slicer.org/t/strange-window-layout/7301 "2019-06-25T03:39:51Z")

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When I run Slicer, the left window is very large. Do I have some old config file somewhere?

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## [Extensions in Mac does not work](https://discourse.slicer.org/t/extensions-in-mac-does-not-work/7297)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 6\
**Last updated:** [June 24, 2019, 7:25pm UTC](https://discourse.slicer.org/t/extensions-in-mac-does-not-work/7297 "2019-06-24T19:25:09Z")

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Hi I cannot install extensions in Mac. Tried through extensions managers- says error, check whether slicer is installed properly Then tried manual installation , as explained in previous posts Could you please advise …

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## [Mask Ultrasound Volume Vector](https://discourse.slicer.org/t/mask-ultrasound-volume-vector/7280)

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**Author:** [@lRaulMN7](https://discourse.slicer.org/u/lRaulMN7)\
**Replies:** 4\
**Last updated:** [June 23, 2019, 10:28am UTC](https://discourse.slicer.org/t/mask-ultrasound-volume-vector/7280 "2019-06-23T10:28:47Z")

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Hello! I saw this video: https://www.youtube.com/watch?v=TIUWzhkdspY Originally, the ultrasound image has some numbers and information on it, however in slicer only the ultrasound image can be seen. Right now I have a …

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## [ How to delete multiple previously loaded “volume” from “Master volume”](https://discourse.slicer.org/t/how-to-delete-multiple-previously-loaded-volume-from-master-volume/7275)

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**Author:** [@Apex](https://discourse.slicer.org/u/Apex)\
**Replies:** 3\
**Last updated:** [June 22, 2019, 5:52am UTC](https://discourse.slicer.org/t/how-to-delete-multiple-previously-loaded-volume-from-master-volume/7275 "2019-06-22T05:52:10Z")

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Can you please let me know how can I simultaneously delete previously loaded multiple “volume” from “Master volume” In the image there are 5 DICOM folders and I want to delete 4. Currently I am selecting each file and p…

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## [General Registration won't recognize a series ](https://discourse.slicer.org/t/general-registration-wont-recognize-a-series/7224)

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**Author:** [@jwatson](https://discourse.slicer.org/u/jwatson)\
**Replies:** 9\
**Last updated:** [June 21, 2019, 5:48pm UTC](https://discourse.slicer.org/t/general-registration-wont-recognize-a-series/7224 "2019-06-21T17:48:03Z")

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Hello, I am trying to co-register two different sequences from the same patient in Slicer, however, only one of the sequences is being recognized in the drop down menu for the fixed and moving images. I can select both …

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## [Run function after button clicked](https://discourse.slicer.org/t/run-function-after-button-clicked/7273)

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**Author:** [@zapaishchykova](https://discourse.slicer.org/u/zapaishchykova)\
**Replies:** 1\
**Last updated:** [June 21, 2019, 12:52pm UTC](https://discourse.slicer.org/t/run-function-after-button-clicked/7273 "2019-06-21T12:52:31Z")

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Hi there! I am wondering if there is any functionality to track if the button on the UI was clicked? For example, I want to run a computation each time after fiducial is placed

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## [Cannot apply Threshold on ROI](https://discourse.slicer.org/t/cannot-apply-threshold-on-roi/7269)

<div class="topic-metadata">

**Author:** [@Apex](https://discourse.slicer.org/u/Apex)\
**Replies:** 3\
**Last updated:** [June 21, 2019, 10:22am UTC](https://discourse.slicer.org/t/cannot-apply-threshold-on-roi/7269 "2019-06-21T10:22:29Z")

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Operating system: Windows, Linux, and Mac Slicer version:4.10.2 Expected behavior: Issue 1: To “apply” “Threshold” on ROI Issue 2: Can apply “Threshold”, but it is automatically reduced to a smaller region when I pres…

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## [Loading large number of models](https://discourse.slicer.org/t/loading-large-number-of-models/7251)

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**Author:** [@ghnguyen](https://discourse.slicer.org/u/ghnguyen)\
**Replies:** 4\
**Last updated:** [June 20, 2019, 10:06pm UTC](https://discourse.slicer.org/t/loading-large-number-of-models/7251 "2019-06-20T22:06:02Z")

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Hi, I have more than 300 models that I want to load into Slicer at the same time, each is around 100-150 megabytes. Slicer was able to load all of them but when I tried to set one of the model visible along with a color …

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## [How to read NRRD metadata](https://discourse.slicer.org/t/how-to-read-nrrd-metadata/7266)

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**Author:** [@Leon](https://discourse.slicer.org/u/Leon)\
**Replies:** 1\
**Last updated:** [June 20, 2019, 10:01pm UTC](https://discourse.slicer.org/t/how-to-read-nrrd-metadata/7266 "2019-06-20T22:01:11Z")

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Imported DICOM files are normally saved as a NRRD file by which the images are anonymized. Ideal for privacy reasons. But if someone sends me such a anonymized NRRD file, am I then still able to read all the other remea…

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## [How to match MRI from different series?](https://discourse.slicer.org/t/how-to-match-mri-from-different-series/7253)

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**Author:** [@Tangtangyinghuochong](https://discourse.slicer.org/u/Tangtangyinghuochong)\
**Replies:** 1\
**Last updated:** [June 20, 2019, 7:28pm UTC](https://discourse.slicer.org/t/how-to-match-mri-from-different-series/7253 "2019-06-20T19:28:57Z")

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Hi Dear developers and users. I am delineating the ROI（Tumor） in abdominal MRIs and then extract the radiomics features for further search. The tumor boundary is very clear in some series(for example, T2 TRA) but blurr…

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## [Volume reslice driver crashes Slicer](https://discourse.slicer.org/t/volume-reslice-driver-crashes-slicer/7265)

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**Author:** [@zapaishchykova](https://discourse.slicer.org/u/zapaishchykova)\
**Replies:** 2\
**Last updated:** [June 20, 2019, 6:42pm UTC](https://discourse.slicer.org/t/volume-reslice-driver-crashes-slicer/7265 "2019-06-20T18:42:31Z")

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Hi there! I’m trying to use Volume reslice driver from python script ( since from console it works fine): def onTransformImageClicked(self): logic = ModuleLogic() result = logic.transformationImage() driv…

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## [Fiducial registration Wizard - custom transformation configuration](https://discourse.slicer.org/t/fiducial-registration-wizard-custom-transformation-configuration/7217)

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**Author:** [@zapaishchykova](https://discourse.slicer.org/u/zapaishchykova)\
**Replies:** 18\
**Last updated:** [June 20, 2019, 1:54pm UTC](https://discourse.slicer.org/t/fiducial-registration-wizard-custom-transformation-configuration/7217 "2019-06-20T13:54:33Z")

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Hi everyone, I’m struggling with Fiducial Registration Wizard. So, what I’m trying to do is the following: The user adds few fiducial points and then User clicks on button and all “To fiducial” points are computed (1) …

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## [Mark up constraints](https://discourse.slicer.org/t/mark-up-constraints/7227)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 2\
**Last updated:** [June 20, 2019, 9:17am UTC](https://discourse.slicer.org/t/mark-up-constraints/7227 "2019-06-20T09:17:31Z")

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Hi Could someone please help me to write a script to keep the distance between markups fixed, please. When I add markups on my images I want them to have the same distance between some of them when I move from frame to …

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## [Getting flipped image on using DWIConvert to convert nifti to nhdr/nrrd](https://discourse.slicer.org/t/getting-flipped-image-on-using-dwiconvert-to-convert-nifti-to-nhdr-nrrd/7231)

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**Author:** [@Ashutosh\_Vaish](https://discourse.slicer.org/u/Ashutosh_Vaish)\
**Replies:** 2\
**Last updated:** [June 20, 2019, 7:32am UTC](https://discourse.slicer.org/t/getting-flipped-image-on-using-dwiconvert-to-convert-nifti-to-nhdr-nrrd/7231 "2019-06-20T07:32:38Z")

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Operating system: Ubuntu 18.04 Slicer version: 4.10.2 Expected behavior: Orientation of nifti image is same as nhdr/nrrd Actual behavior: Image is getting rotated and there is shift in dimensions of 4D data volume. D…

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## [volume rendering in 3dslicer](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185)

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**Author:** [@Manoj\_Bagare](https://discourse.slicer.org/u/Manoj_Bagare)\
**Replies:** 15\
**Last updated:** [June 20, 2019, 12:35am UTC](https://discourse.slicer.org/t/volume-rendering-in-3dslicer/7185 "2019-06-20T00:35:04Z")

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Dear sir, Please find the attached file to find out the cause of error. I can’t able to do volume rendering, the software gets closed off itself when i click the eye icon in volume rendering. I am using Dell Precision …

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## [Issues with generating a model from ultrasound quasi-parallel slices](https://discourse.slicer.org/t/issues-with-generating-a-model-from-ultrasound-quasi-parallel-slices/1490)

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**Author:** [@thefcpk](https://discourse.slicer.org/u/thefcpk)\
**Replies:** 6\
**Last updated:** [November 20, 2017, 1:52pm UTC](https://discourse.slicer.org/t/issues-with-generating-a-model-from-ultrasound-quasi-parallel-slices/1490 "2017-11-20T13:52:53Z")

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Hello all, Apologies if this something answered in the past, I have been digging old forum threads and scratching my head for quite some time now. I am currently trying to render a 3D surface from a series of(unfortuna…

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## [Assign a CT intensity value within a segment](https://discourse.slicer.org/t/assign-a-ct-intensity-value-within-a-segment/7066)

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**Author:** [@kmalexander](https://discourse.slicer.org/u/kmalexander)\
**Replies:** 5\
**Last updated:** [June 19, 2019, 2:53pm UTC](https://discourse.slicer.org/t/assign-a-ct-intensity-value-within-a-segment/7066 "2019-06-19T14:53:45Z")

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Hi - I’m looking to assign an intensity value to a CT image for every voxel within a segment, and the voxels outside that segment should stay the same. I imagine there is a filter for this, but there are so many to cho…

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## [Moving volume overwritten with BRAINSfit General Registration Module](https://discourse.slicer.org/t/moving-volume-overwritten-with-brainsfit-general-registration-module/7153)

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**Author:** [@Eloise](https://discourse.slicer.org/u/Eloise)\
**Replies:** 2\
**Last updated:** [June 19, 2019, 1:42pm UTC](https://discourse.slicer.org/t/moving-volume-overwritten-with-brainsfit-general-registration-module/7153 "2019-06-19T13:42:25Z")

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Hello, When I use the BRAINSFit registration module, the moving volume is overwritten (i.e. transformed and resampled in the same space as the fixed volume, and similar to the output volume). Is there any way to prevent…

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## [Landmark registration and combining intenstities of fixed and moving volume](https://discourse.slicer.org/t/landmark-registration-and-combining-intenstities-of-fixed-and-moving-volume/7106)

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**Author:** [@mahagop](https://discourse.slicer.org/u/mahagop)\
**Replies:** 7\
**Last updated:** [June 19, 2019, 11:32am UTC](https://discourse.slicer.org/t/landmark-registration-and-combining-intenstities-of-fixed-and-moving-volume/7106 "2019-06-19T11:32:53Z")

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I am trying to combine two image volumes using landmark points. I created four fiducial points. I was successful in visualizing the landmark points and positioning them accurately. I applied “adding” option to combine th…

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## [SlicerCochlea and SlicerCervicalSpine extensions are not updated in the extension manager in WIndows](https://discourse.slicer.org/t/slicercochlea-and-slicercervicalspine-extensions-are-not-updated-in-the-extension-manager-in-windows/7232)

<div class="topic-metadata">

**Author:** [@brhoom](https://discourse.slicer.org/u/brhoom)\
**Replies:** 1\
**Last updated:** [June 19, 2019, 10:20am UTC](https://discourse.slicer.org/t/slicercochlea-and-slicercervicalspine-extensions-are-not-updated-in-the-extension-manager-in-windows/7232 "2019-06-19T10:20:02Z")

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Just checked on Slicer 4.10.1 When uninstall and install the extension. The files are still the ones from last year. e.g. CochleaSeg.py is from 8/12/2018.

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## [Disconnect signal](https://discourse.slicer.org/t/disconnect-signal/7226)

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**Author:** [@tbillah](https://discourse.slicer.org/u/tbillah)\
**Replies:** 1\
**Last updated:** [June 19, 2019, 2:41am UTC](https://discourse.slicer.org/t/disconnect-signal/7226 "2019-06-19T02:41:41Z")

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I am connected to a figure like below: mainwindow = slicer.util.mainWindow() figureHandle= slicer.util.findChildren(mainwindow, className="qMRMLPlotView")\[0\] Now, I would like to disconnect when File → Close S…

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## [Help Understanding Slicer](https://discourse.slicer.org/t/help-understanding-slicer/7211)

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**Author:** [@steve01](https://discourse.slicer.org/u/steve01)\
**Replies:** 2\
**Last updated:** [June 18, 2019, 11:05pm UTC](https://discourse.slicer.org/t/help-understanding-slicer/7211 "2019-06-18T23:05:36Z")

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Operating system: Slicer version: Expected behavior: Actual behavior: Is there anyone out there that would be willing to help me better understand 3D slicer. I already have a basic understanding and would like to und…

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## [Import segmentation nodes seperately](https://discourse.slicer.org/t/import-segmentation-nodes-seperately/7094)

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**Author:** [@Jainey](https://discourse.slicer.org/u/Jainey)\
**Replies:** 4\
**Last updated:** [June 18, 2019, 8:15pm UTC](https://discourse.slicer.org/t/import-segmentation-nodes-seperately/7094 "2019-06-18T20:15:59Z")

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I want to import several segmented models into slicer to do segment registration. I tried doing that, but instead of separate models, it shows a heavily overlapped single model. Could you please advise. Thanks

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## [Volume/Volume Rendering](https://discourse.slicer.org/t/volume-volume-rendering/7209)

<div class="topic-metadata">

**Author:** [@steve01](https://discourse.slicer.org/u/steve01)\
**Replies:** 4\
**Last updated:** [June 18, 2019, 7:34pm UTC](https://discourse.slicer.org/t/volume-volume-rendering/7209 "2019-06-18T19:34:57Z")

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This is my first post so please forgive me if this is out of place. I have worked through several tutorials now and found that I can mimic what was presented in the tutorials. Unfortunately, this does not mean that I u…

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