DICOM @ OFFIS

Hello all, I am not fully sure of what needs to be inserted in this sequence for my RTSTRUCT file that I am writing. While it is Type 3 tag, I need it because the RTSTRUCT references a CT image set. Could anyone please verify the correctness of the following? FrameOfReferenceUID : Should be the same...

I have figured it out: the dose grid starts at the vector specified in tag "DCM_ImagePositionPatient". From there you generate the grid from the pixel spacing values for X and Y and then you can overlay/heat-map the pixel data using VTK.

Thanks for the info Michael! I'm still a little confused on how to make use of the pixel data. We have the z-positions from the Grid Offset Vector, but how do we get the x and y as well? From my understanding, the pixel data values are in a specific order and map to specific voxels. Is there anyway ...

Thanks Jorg, On a related note, how would you map this pixel data / dose grid to the image like an overlay? (I want to heat-map this data with a VTK colour map). We would need some data in image coordinates to give this scalar data meaning no? Is DCM_OverlayData what I need? But I can't seem to extr...

Just a quick correction to this line to those using Oliver's code, which is very helpful btw:
const Uint16 *pixelData = NULL;

We have to allocate the memory with something like:
const Uint16 *pixelData = new Uint16[rows*columns*frames];

Otherwise the findandgetUint16 will not do anything!