[Dcmlib] Unreadable dicom file from Peter Cech : clean solution found

[Jean-Pierre Roux]

Peter Cech wrote:

>On Tue, Aug 23, 2005 at 14:21:00 -0400, Mathieu Malaterre wrote:
>  
>
>>Peter,
>>
>>	Can you confirm the DICOM image is comming from a Philips Intera 
>>Archieva ? I am currently reading:
>>http://www.medical.philips.com/main/company/connectivity/mri/index.html
>>-> 
>>http://www.medical.philips.com/main/company/connectivity/assets/docs/dicomcs/Intera_Achieva_106dcs.pdf
>>    
>>
>
>It's Intera 3.0T (not Achieva as far as I can say). Philips does not
>have it on their webpage, but some sparse info is at
>http://www.mr.ethz.ch
>
>  
>
>>and I cannot find *any* reference to
>> 2005|1083 SQ
>> 2005|1402 SQ
>>    
>>
Hi!
My own experience with 'private' tag description found on the 
constructors web sites is that it's never complete nor accurate.
(Remember the link Jean-Michel gave us for Philips Intera. A lot of 
entry descriptions were missing)
The best we have to do is to be able to work *without* it (and without 
the shadow dictionnary we try to made from it).

The fix I just commited solves the problem of Private Sequence Entry + 
Implicit VR (even when the Transfert Syntax is announced as 'Explicit 
VR', the private PMS tags are Implicit :-(
We have no way to guess it's a Sequence, so we backtrack when we found 
an Item Starter out of any SQItem.
The code is much lighter than the first one I wrote.

We may now encounter any number of private sequences + Implicit VR, 
wihout having to modify the dicomV3.dic.

JP

>>If you have access to one of the machine, could you export what those SQ 
>>means ? Or do you any kind of document that would let us know  where 
>>this is defined.
>>    
>>
>
>I don't have direct access, but I can try to find out. I got a scan made
>on that machine two months before and another using the same setup made
>four months ago - both readable since beginning. Maybe they upgraded some
>software, I'll try to find it out.
>
>Regards,
>Peter
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>  
>