Dicom RT struct - Extract ROI voxels

Baloo

2020 11 12

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Dear All,

I have a question related to handling of dicom data in Matlab. I have a dicom RD dose file, which contains a 3D matrix with the radiotherapy dose released to each single voxel.

I also have a dicom RS file, which contains contours of different ROIs. I would like to create a "mask" for the voxels of a specific ROI, therefore assigning a value of 1/0 to the corresponding voxels of the 3D matrix that belong/not belong to such ROI.

Do you have any hint?

Thank you for your support.

Best regards

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Tim 2020-11-12

Are your ROI contours defined as 3D polyhedra? If so, you may be able to deterimine the voxels inside the ROI's by using various "inpolyhedra" type functions, examples here and a useful thread here.

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