Brush Tool draws ellipses

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1

Describe Your Question

Hi all,

I am using OHIF (v3.8.0) to perform segmentations. I am using the Brush Tool to draw them, but even though the cursor is a circle, when I click an ellipsis is drawn.

I managed to link this issue with the fact that my image is slightly tilted (Orientation = 1/0/0/0/0.997/0.007). When I use the default layout, elllipses are drawn, but when I use for instance the MPR layout, circles are drawn.

However, I don’t want to use the Axial viewport with world coordinates, I want to use a viewport that corresponds to my tilted images (like the default layout) and still draw circles like expected.

I have searched through viewports, displaySets, sopClassHandlers and cornerstone and I haven’t found a way to draw circles in my segmentations. I guess I could create my own tool, but I am wondering if there is a simpler way

Thanks in advance

What steps can we follow to reproduce the bug?

  1. Import a tilted image
  2. Open the segmentation mode
  3. Create a segmentation
  4. Select the brush tool
  5. Draw on the viewport
2

it is probably because your data is oblique acquired, use the sphere tool it has the correct logic, until we fix the circle in oblique

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