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Sikerdebaard / dcmrtstruct2nii

DICOM RT-Struct to mask
MIT License
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Question about `RTSTRUCT` and DICOM images pairing #46

Closed ff98li closed 11 months ago

ff98li commented 1 year ago

Thank you for sharing this amazing package!

I'm using the python API dcmrtstruct2nii, which requires the input rtstruct_file and dicom_file, which means locating the right dicom_file for the current rtstruct_file is up to the users. I'm new to the DICOM format and I'm currently handling datasets in which there are multiple RTSTRUCT and DICOM image directories for a study. So I'm not really sure how to find the right DICOM image directory corresponding to the right RTSTRUCT. My current approach is doing the following mapping:

For images being referenced by some RTSTRUCT:
(0020,000E) Unique identifier of the series. <----------
-------------------------------------------             | 
For RTSTRUCT referncing CT/MR images:                   |
(3006,0010) Referenced Study Sequence                   |  Check if their series UID match
  (3006,0012) RT Referenced Study Sequence              |
      (3006,0014) RT Referenced Series Sequence         |
          (0020,000E) Unique identifier of the series. <-

In other words, I look up the series UID (0020, 000E) of a random DICOM in a CT/MR image directory, and then look up the series UID under (3006, 0010) in the RTSTRUCT DICOM with which I try to find the right DICOM image directory to pair. I'm not sure if this is the right way to find the right RTSTRUCT and DICOM image pairing. I will really appreciate it if any user experienced with DICOM could provide more information about handling such cases.

Sikerdebaard commented 11 months ago

Hi @ff98li unfortunately I cannot help you with this. This github repo is about converting RTStruct to Nifti and not about DICOM standards. I recommend you ask in a discussion group about DICOM, for example on Reddit r/dicom.