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Need help searching through a DICOM structure

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Patrick Ford
Patrick Ford 2017-9-26
编辑： Walter Roberson 2017-9-26
I have a structure ( a DICOMDIR and its files) that I want to search and select certain items for further use. I have been able to read in the DICOMDIR as follows:
dd = dicominfo('path/DICOMDIR');
The next step is to review the items in dd.DirectoryRecordSequence such as
dd.DirectoryRecordSequence.Item_1
There are about 1400 items and I want to index through them with a loop. I can get the proper information with the following:
getfield(dd.DirectoryRecordSequence,'Item_1')
and I can get an array of the field names,
fn = fieldnames(dd.DirectoryRecordSequence);
so that fn(1) is
ans =
1×1 cell array
{'Item_1'}
But
getfield(dd.DirectoryRecordSequence, fn(1))
does not work. How do I go about getting this so I can index it by referencing
fn(i) {where i = 1 to 1400}?
Thank you

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Walter Roberson
Walter Roberson 2017-9-26
编辑：Walter Roberson 2017-9-26
getfield(dd.DirectoryRecordSequence, fn{1})
or
dd.DirectoryRecordSequence.(fn{1})
You do not need char() -- just use the right indexing style

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