Hi Gabriel, Thanks for pointing me to the code function. I might have understood what the software is doing, but I am not completely certain of that. I would appreciate if you could confirm whether I have really understood it. There is a 3D vector representing the pixel resolution (spacing) of the 3...

Hi Gabriel, Thanks for replying. I used the term 2D Axial because it's how it is called on the manual/tutorial. I prefer calling it the plane perpendicular to the pathline too. My question was about how SimVascular decides what pixel size to use in the perpendicular plane, since it can be at an infi...

Hi, I'd like to add a picture to illustrate my question. The three columns are CT scans of the same phantom at different angles to the axial direction. The image resolution is not the same. The left image shows the phantom in the axial direction (0 deg), and spatial resolution 0.97x0.97x0.5. The oth...

Hi, How is the image resolution (pixel size) of the Axial 2D View along the pathline calculated? I have noticed that in some of my CT scans the resolution is very good (small pixels) compared to others (big pixels). When I say big or small pixels, I am comparing their size with the vessel diameter. ...

I was able to overcome the 'no valid data' error by extracting surfaces and giving them walls or caps status. However, there was an internal error, which caused SimVascular to close. !37.962! [VtkGenericWarning] WARNING: Generic Warning: In /home/hongzhi/ForSV3_201603/SourceCode/VTK/Common/Core/vtkM...

Hi, I would like to extract centrelines from imported STL models. I get the following message: "No valid data!". I have also tried to import the model as .vtp (VTK polydata), and it hasn't worked either. I suppose, I get that message because the segmentation wasn't done on the same project. Is that ...

I you want to edit STLs, I would recommend you Blender.

You can export the STL from SimVascular, and use Blender to split the exit patches of the whole STL into separate STLs. Then you have two options. The first option is to mesh using snappyHexMesh (octree method) using all STL patches for assigning BCs. You can make very good prism boundary layers in ...

When I export a polyData without a blend (fillet) between vessels, I make the blend manually in Blender using the sculpt mode with dyntopo. Dyntopo remeshes the triangles locally. I add some "clay" in the gaps, which also remeshes the triangles locally because of dyntopo. Then I use the smooth tool ...