Profile of Hounsfield Units for each pixel

Hello,
in radiation therapy we are very interested in knowing the profile of the Hounsfield Units(HUs) of the pixels of our CT scans.
In ImageJ (ImageJ) we can get the profile of the HUs with a simple (ctrl + k).
Is there any simple equivalent in 3D Slicer? Is it hard to implement one?
In the image below for instance I can draw a line and get the HUs profile instantly.
Thank you.