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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Hello Ashish,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don’t know of any other way to tell if the image has
been processed other than the looking for DERIVED\SECONDARY in the Image Type
attribute. You may be able to dig through some of the IHE profiles (<a
href="http://ihe.net">http://ihe.net</a>) to see if they address that
issue. I’d be surprised if they did.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>My general philosophy is that eventually you have to fall back
to what the standard says. If a workstation implements it correctly that’s
what you’ll see. If they didn’t implement it correctly they
need to fix it. These attributes are not edited by a tech.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> --
Scott<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Ashish Singh
[mailto:asinghmlists@gmail.com] <br>
<b>Sent:</b> Tuesday, February 23, 2010 9:39 AM<br>
<b>To:</b> gdcm-developers@lists.sourceforge.net; vtkusers@vtk.org<br>
<b>Subject:</b> Re: [Gdcm2] [vtkusers] distinguish between real CT scans(beam
ON)and non-realCT scans(beam OFF)<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Thanks Scott, I checked the
section you mentioned in dicom standard. Yes, I can always check for these
strings in the dicom tags, but what if these tags have incorrect information
due to maybe machine or human error (I don't know if a tech. can add or modify
these.) . How do we go about it in that case? Is there another check that we
can do?<br>
<br>
Thanks,<br>
Ashish<o:p></o:p></p>
<div>
<p class=MsoNormal>On Fri, Feb 19, 2010 at 1:36 PM, Scott Johnson <<a
href="mailto:Scott.Johnson@neuwave.com">Scott.Johnson@neuwave.com</a>>
wrote:<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'>Hello Ashish,</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'>You’re looking at the right
attribute. If Image Type (0008,0008) contains DERIVED is has been
computed from one or more other images. Look in Part 3 section
C.7.6.1.1.2. The attribute will probably also contain SECONDARY, but I can’t
guarantee that.</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'>You might also look at Derivation
Description (0008,2111) section C.7.6.1.1.3. But that attribute is type 3
(optional).</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'>Good luck.</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'>
-- Scott</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:11.0pt;color:#1F497D'> </span><o:p></o:p></p>
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border-color:-moz-use-text-color -moz-use-text-color'>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:10.0pt'>From:</span></b><span style='font-size:10.0pt'> <a
href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a>
[mailto:<a href="mailto:vtkusers-bounces@vtk.org" target="_blank">vtkusers-bounces@vtk.org</a>]
<b>On Behalf Of </b>Ashish Singh<br>
<b>Sent:</b> Friday, February 19, 2010 10:31 AM<br>
<b>To:</b> <a href="mailto:vtkusers@vtk.org" target="_blank">vtkusers@vtk.org</a>;
<a href="mailto:gdcm-developers@lists.sourceforge.net" target="_blank">gdcm-developers@lists.sourceforge.net</a><br>
<b>Subject:</b> [vtkusers] distinguish between real CT scans(beam ON) and
non-realCT scans(beam OFF)</span><o:p></o:p></p>
</div>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi,<br>
<br>
I am trying to recursively read all dicom images from a CT study with several
series. How do I figure out which images are real/primary scans(where the
x-ray beam was ON) and which ones are not( such as recons, etc.)? I have been
looking at the Image Type Tag(0008,0008) and series description tag (0008,103E),
but is there a more systematic and foolproof way of figuring this out?<br>
<br>
This may not exactly be a VTK/GDCM question, but since there are many dicom
experts in the community, if anyone can guide me, I would really appreciate it.<br>
<br>
Thanks,<br>
Ashish<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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