ERROR occurs when I convert dimcomRT to malab

I made RT structure of BODY and Lungs with 3D slicer.

However, when I convert my RT data to matlab, a warning appears and then an error occurs.

The warining and errors are followed:

Warning: File and dictionary VR values do not match for attribute "ContourData" (3006,0050). Expected: DS. Found: UN. Consider setting the 'UseDictionaryVR' parameter to true.

Error using reshape

Number of elements must not change. Use [] as one of the size inputs to automatically calculate the appropriate size for that dimension.

Error in dicomrt2matlab>readRTstructures (line 66)

segments{j} = reshape(rtssheader.ROIContourSequence.(ROIContourSequence{i}).ContourSequence.(ContourSequence{j}).ContourData, ...

Error in dicomrt2matlab (line 25)

contours = readRTstructures(rtssheader, imageheaders,ROIName); %#ok

I attached my code.

Why this warning and error occurs? and how can I solve this?

Best regard, Sue

[Walter Roberson]

That brings to mind a case in which the scanner saved contours using a custom Transfer Syntax that involved storing the actual data in a private attribute and storing non-compliant information in some of the headers.

At the moment I do not recall which manufacturer it was... part of my memory is saying "GE!" but a different part is saying "No, it was something else".

IIRC, debugging that involved having to load in a private directory that I cobbled together from a couple of sources.

Unfortunately I was not able to figure out how the data was encoded in the private attributes in that case. It looked like I was getting somewhere, but the sizes did not match.