Dicom metadata mxArray fault

Question

MikeSv 2015-10-23

关闭： MATLAB Answer Bot 2021-8-20

Hello everyone. Iam trying to read metadata from a DICOM file and display them.in a listbox.

I read the data with

info = dicominfo(filename);

Then I tried to display the data with

Set(handles.listbox1,'string',info);

Unfortunately that does not work. Matlab says something about a mxArray.

So my question is how can I read the data from the mxArray in a listbox?

Thanks in advance,

Mike

此问题已关闭。

Answer 1

Walter Roberson 2015-10-23

dicominfo() does not return a string: it returns a structure. You will need to convert the parts of the structure to strings to display them.

A quick and dirty method would be to use an edit box instead of a text box, and to use

Set(handles.editbox1, 'string', evalc(disp(info)) );

Walter Roberson 2015-10-23

I do not know what the "value" would represent there?

If you want to loop over the field names you can do so:

fn = fieldnames(info);
for K = 1 : length(fn)
  thisvalue = info.(fn{K});
  ... do something with thisvalue
end

MikeSv 2015-10-25

Thank you very much Walter. This works to a certain point. I seems like there are some nested structures inside the DICOM as well...