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tsehrhardt

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Posts posted by tsehrhardt


  1. On 3/16/2021 at 5:46 PM, ArturArtur said:

    I dont know how to fill walls of skull ( pink space) 

    You can go to Analysis--> Inspector and it will drop pins indicating the holes and you can click them to fill in. Since your edges are highlighted blue, Meshmixer knows those edges outline holes.


  2. I think vtk.js or 3DHOP would work well. 3DHOP has measurement, transparency, and clipping and works well with CT and microCT models. I have generated static pages with 3DHOP, but I think for a site like this you would need a "viewer" page that models get directed to or generated when someone wants to see it in 3D.

     

    Sketchfab can also be used since you only need to view one model at a time and it supports public or private models, you can set whether models are downloadable or just viewable, but generating a custom viewer with more features for your own site requires a Premium or above account.


  3. It was good. The live discourse on Wednesday was fun. Tuesday was mostly presentation of new features, Slicer citations and number of users/posts in the discourse. Thursday was web applications--they mentioned vtk.js and the gltf export Wed when I brought up Sketchfab and there was a presentation on it yesterday so that was helpful. Now I need to learn vtk.js!


  4. <iframe width="480" height="373" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" id="kitware-vol-viewer" title="Volume viewer" src="https://kitware.github.io/vtk-js/examples/VolumeViewer/VolumeViewer.html?fileURL=https://data.kitware.com/api/v1/item/59e12e988d777f31ac6455c5/download"> </iframe>


  5. <iframe width="480" height="373" frameborder="0" scrolling="no" marginheight="0"
     marginwidth="0" id="kitware-vol-viewer"
     title="Volume viewer"
     src="https://kitware.github.io/vtk-js/examples/VolumeViewer/VolumeViewer.html?fileURL=https://data.kitware.com/api/v1/item/59e12e988d777f31ac6455c5/download">
    </iframe>

     


  6. It might be a function of just allowing the Sketchfab url:

    • Allowed iframe bases
      By default, iframes are usually stripped from posts. However, if you have a need to allow them, you can add URLs here. If the URL of an iframe matches one listed, it will be allowed through the parser.

  7. Maybe I'll write a tutorial on this:

     

    I have played around with the Split Volume tool in the Segment Editor in 3D Slicer and it seems like it would be pretty nifty for some of the files uploaded here, although it does require you to create segments first. Basically you make your segments, apply Split Volume and it creates a new NRRD volume for each segment--they're all available when you click Save. So if you're segmenting just bones, it gets rid of the soft tissue voxels. Mask Volume might do something similar but I haven't played with it yet.

     

    2020-11-23_14-53-36.png

    2020-11-23_14-57-27.png


  8. On 6/25/2020 at 1:32 AM, RCH said:

    I want to have a life-sized human skull printed from DICOM files, and I'm wondering if the mandible can be printed separately, so that I can articulate them.  Has anyone heard of this being done?  Is it possible to somehow separate the DICOM files of skull and mandible, so they can be separately printed?  If so, what are my material options? 
    BTW -- I recognize that a separate mandible is unlikely to stay in place on the skull, and that's fine; I'm capable of fabricating some method of holding it in place. 
    Thank you in advance for any thoughts on the topic.

    You don't need to create separate DICOM files for the skull and mandible. Depending on the overlap of the teeth, you can erase some of the segmentation in order to create gaps between the skull and mandible--if you are segmenting yourself. If you are uploading to democratiz3d, you can download the model and then either apply a plane cut in Meshmixer or if you want the actual articulations, you can "paint" the parts of the model to delete to create the necessary gaps, then repair the holes. Again, the difficulty would depend on whether you can separate the teeth on the maxilla from the mandible.


  9. In case there is any interest here in the applications of radiology and imaging in forensic science, I wanted to share the link to the next conference in Albuquerque, New Mexico, May 14-16, 2020: https://www.isfri2020.com/.

     

    I definitely plan to go and will probably submit some kind of abstract about bones from CT supplementing reference collections for forensic anthropology. The abstract submission deadline is December 12.

     

    Terrie


  10. You can also use the EasyClip tool in 3DSlicer:

    import your CT volume and your 3D model (or even just your 3D model), then you can use the CT slices as planes to indicate where you want to cut--you can still rotate them if needed. You can save the half you want and even "undo" and save the other side (similar to Meshmixer). 

     

    Slicer is especially handy if you have landmark coordinates and want to place a cut exactly at a specific coordinate, for example if you have oriented models and nasion is at x = 0--you can type this in to the appropriate slice view (red, yellow, green).


  11. On 3/22/2019 at 2:31 PM, mariancue said:

    Hello everybody!

     

    My name is Maria and I ´m a Research Student. 

     

    Actually, I am working with Mimics Medical and I have some problems, perhaps, you could help me. In my case, my images files are TIFF format not DICOM file and Mimics is only software that I know that it is eneable with this format. 

     

    My question is: is there any software other than Mimics? 

     

    Thank you,

    For tiffs, I like to open the stack in Fiji and save as NRRD--the NRRD opens much faster in Slicer. You can also set the spacing in Fiji for the NRRD to have the correct dimensions in Slicer.


  12. 10 hours ago, Dr. Mike said:

    Terrie,

    Speaking of sharing anthropology files online, embodi3D has a dedicated section in the file library for anthropological files. But, it hasn't been active at all. Do you have any ideas for how we can get better sharing in this field? We'd like to help promote 3D printing in anthropology as well as medicine.

     

    https://www.embodi3d.com/files/category/11-anthropology/

    Thanks in advance,

    Dr. Mike

    I know! Anthropologists tend to use Morphosource, although I haven't seen clinically derived data there. As you might have gathered from the survey, there is much discussion in anthropology about the ethics of sharing/posting human skeletal data, especially with clinical CT data becoming more accessible.

     

    I have full and cut facial models from TCIA--would that be ok to post here? I have also built 3D html pages that allow interaction with the models that I'm trying to find/build a home for so that I could possibly also cross-reference to printable models here.

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