<html><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:12pt"><div><span>Thank you guys. We would like to use MRI geometry rather than CT's for the treatment purpose, so we try to modify the MRI dicom headers (to make it CT header-alike) instead of mapping the pixels from MR to CT. </span></div><div><span><br></span></div><div>Dose accuracy based on MRI will be an issue, but not a major concern for the time being. Thanks.</div><div><br></div> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div style="font-size: 12pt; font-family: 'times new roman', 'new york', times, serif; "> <div dir="ltr"> <font size="2" face="Arial"> <hr size="1"> <b><span style="font-weight:bold;">From:</span></b> Jothy <jothybasu@gmail.com><br> <b><span style="font-weight: bold;">To:</span></b> Scott Johnson <Scott.Johnson@neuwave.com> <br><b><span
style="font-weight: bold;">Cc:</span></b> Bryant Chanowitz <bchanowitz@yahoo.com>; "insight-users@itk.org" <insight-users@itk.org> <br> <b><span style="font-weight: bold;">Sent:</span></b> Wednesday, June 27, 2012 3:59 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Insight-users] convert MRI to CT by changing dicom header<br> </font> </div> <br>
<div id="yiv1771462260"><div><div>One way to tackle this is to assign HU of water or set in homogeneity correction off. Of course you need to compromise the accuracy!<br><br>Sent from my Phone</div><div><br>On 26-Jun-2012, at 11:56 PM, Scott Johnson <<a rel="nofollow" ymailto="mailto:Scott.Johnson@neuwave.com" target="_blank" href="mailto:Scott.Johnson@neuwave.com">Scott.Johnson@neuwave.com</a>> wrote:<br><br></div><blockquote type="cite"><div><style><!--
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--></style><div class="yiv1771462260WordSection1"><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">I’m sure that you can take the image pixels from an MR image and pack it into a CT image, but it would be an extremely bad idea.</span></div><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">The planning system is going to believe that those pixels represent HU values and they don’t. The computed dose will have no bearing on reality.</span></div><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">
-- Scott</span></div><div class="yiv1771462260MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;"><div class="yiv1771462260MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> <a rel="nofollow" ymailto="mailto:insight-users-bounces@itk.org" target="_blank" href="mailto:insight-users-bounces@itk.org">insight-users-bounces@itk.org</a> [mailto:insight-users-bounces@itk.org] <b>On Behalf Of </b>Bryant Chanowitz<br><b>Sent:</b> Tuesday, June 26, 2012 2:27 PM<br><b>To:</b> <a rel="nofollow" ymailto="mailto:insight-users@itk.org" target="_blank" href="mailto:insight-users@itk.org">insight-users@itk.org</a><br><b>Subject:</b>
[Insight-users] convert MRI to CT by changing dicom header</span></div></div></div><div class="yiv1771462260MsoNormal"> </div><div><div><div class="yiv1771462260MsoNormal" style="background:white;"><span style="color:black;">Hi,</span></div></div><div><div class="yiv1771462260MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1771462260MsoNormal" style="background:white;"><span style="color:black;">We would like to import MRI images for radiation treatment planning but the planning system only takes CT images. Is there a way to fool the system by changing MRI dicom headers into CT headers? Any suggestions would be highly appreciated.</span></div></div><div><div class="yiv1771462260MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1771462260MsoNormal" style="background:white;"><span
style="color:black;">Bryant</span></div></div></div></div></div></blockquote><blockquote type="cite"><div><span>_____________________________________</span><br><span>Powered by <a rel="nofollow" target="_blank" href="http://www.kitware.com/">www.kitware.com</a></span><br><span></span><br><span>Visit other Kitware open-source projects at</span><br><span>http://www.kitware.com/opensource/opensource.html</span><br><span></span><br><span>Kitware offers ITK Training Courses, for more information visit:</span><br><span>http://www.kitware.com/products/protraining.php</span><br><span></span><br><span>Please keep messages on-topic and check the ITK FAQ at:</span><br><span>http://www.itk.org/Wiki/ITK_FAQ</span><br><span></span><br><span>Follow this link to subscribe/unsubscribe:</span><br><span>http://www.itk.org/mailman/listinfo/insight-users</span><br></div></blockquote></div></div><br><br> </div> </div> </div></body></html>