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<p>Dear Ashok,</p>
<p>It looks like there is an issue with your interfile header. I
attached an example of an interfile header working with CASToR.
You could also see the required key in chapter 8 of the
documentation.</p>
<p>Let me know if you still encounter issues.</p>
<p>Best regards,<br>
Thibaut<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 09/04/2020 20:22, Ashok Tiwari
wrote:<br>
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<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228">Dear
CASToR users,<o:p></o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228"><o:p> </o:p></span></p>
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<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228">I’ve
generated an attenuation map of the phantom using
DICOM images (CT) in MATLAB. I managed to save the
linear attenuation coefficients (cm^-1) in interfile
(.hdr header and .img data) format. Then, I fed
these files in castor reconstruction using ‘-atn
atten_map.hdr’ command. But I could not able to
perform the attenuation correction correctly.
Attached is the screenshot of errors that generated
during the reconstruction. Do I have to convert the
attenuation map data in castor file format?<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228">Any
help will be appreciated. Thank you.<o:p></o:p></span></p>
</div>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228"><o:p> </o:p></span></p>
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<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228">Regards,<o:p></o:p></span></p>
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<div>
<p class="MsoNormal" style="background:white"><span
style="font-size:10.0pt;font-family:"Helvetica",sans-serif;color:#1D2228">Ashok<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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<pre class="moz-signature" cols="72">--
Thibaut MERLIN -- PhD
Docteur en Imagerie Médicale au Laboratoire de Traitement de l'Information Medicale (LaTIM - INSERM UMR 1101)
Institut Brestois de recherche en Bio-Santé (IBRBS)
12 Avenue Foch, 29200 Brest, FRANCE
Tel: 06.75.12.24.90</pre>
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