How to create sphere-shaped segment?

Dear Sir,

I want to create an ROI sphere in my image so that I can get the counts in ROI created.

This means that I can adjustable the sphere volume due to radius or something else.

Does any extension have it?

The “Paint” Segment Editor effect has a sphere mode where you can set the size of the sphere. Then you can get the statistics of this sphere using the Segment Statistics module.

But, the diameter is in %. I don’t know the value in mm of the diameter.

What I want is can set the diameter of the sphere to 37mm and so on.

Click the % button on the right to switch to mm.

Thank you very much for your reply