Dicom Image Volume Rendering #678
Description
Hi，
We are trying to get volume rendering work with DICOM vti image written from vtk writer in Python. Following the structure, we are running into troubles trying to getindex.json file correctly generated. So few questions here and appreciate if someone can help!
- How does
index.jsongenerated forvtidata - Is using
vtkHttpDataSetReaderthe correct choice of reading the data? Or it should beXMLReader - Is there a better way of reading Dicom images(a folder of .dcm files) instead of using
vtifile
Thanks!
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jourdain commentedon Mar 30, 2018
To read a
vtifile you need to use that reader like hereThe http reader use a different format which can be generated with that script.
But if you want to load DICOM, you should consider itk-js for loading your file natively and respect the orientation of the volume. @thewtex can tell you more about it.
Also you can see DICOM loading using itk-js and vtk-js here with ParaView Glance.
thewtex commentedon Apr 2, 2018
Yes, as @jourdain mentioned, we can load the DICOM images directly via itk.js.
To load a multi-frame DICOM file (the entire volume is in one file), use itk/readImageFile. To load a DICOM file series, use itk/readImageDICOMFileSeries. Both of these are enabled in this reference application.
leyuan commentedon Apr 4, 2018
Okay thanks!
rjsgml5698 commentedon Apr 18, 2019
I want to render dicom files using itk.js. So, I want to use itk / dicomImageDICOMFileSeries.
However, I am a beginner who is not familiar with itk.js.
Is there a simple example I can refer to?
thewtex commentedon Apr 23, 2019
@rjsgml5698 these code snippets may be helpful:
https://github.com/InsightSoftwareConsortium/itk-js/blob/680878359d89fa0e0e7b609cec494500762ec6af/test/Browser/DICOMSeriesTest.js#L22-L26
https://github.com/Kitware/itk-vtk-viewer/blob/58ed5f09e904557ee949f5d6e4f65be395a428e9/src/processFiles.js#L32-L42
rjsgml5698 commentedon Apr 24, 2019
Thank you for your help!! I will try it!
engrussman commentedon Jun 20, 2019
@thewtex I want to render the DICOM images but unable to use the following. would be grateful if you can give an independent example for beginners, please?
https://github.com/InsightSoftwareConsortium/itk-js/blob/680878359d89fa0e0e7b609cec494500762ec6af/test/Browser/DICOMSeriesTest.js#L22-L26
thewtex commentedon Jun 21, 2019
@engrussman here's an example:
https://glitch.com/~itk-read-dicom
engrussman commentedon Jun 21, 2019
@thewtex Many thanks for your prompt response. The example is working fine for one or two slices when I select more than that, it gets stuck on "Loading... " status. Can you please rectify the issue, please.
thewtex commentedon Jun 21, 2019
@engrussman please share the data so the issue can be reproduced.
engrussman commentedon Jun 22, 2019
@thewtex Sorry that was my bad. There was some issue with the dataset, after fixing that issue, now it is reading all the dicom files. Thanks for your support. Is there any example which also performs rendering of DICOM file using VTK.js?
thewtex commentedon Jun 22, 2019
@engrussman good to hear :-)
A few applications with DICOM support using itk.js / vtk.js:
https://kitware.github.io/itk-vtk-viewer/
https://kitware.github.io/itk-vtk-viewer/app/
https://kitware.github.io/paraview-glance/index.html
https://kitware.github.io/paraview-glance/app/
wcb2fwt commentedon Sep 24, 2021
@thewtex Hello, when the number of DCM files exceeds 800, there will be an error, I want to know why? thank you~
wcb2fwt commentedon Sep 24, 2021
@thewtex When I delete the remaining 650 DCM files, it can be displayed normally. I need your help, thank you very much
