<p dir="ltr">Hi Supreet,</p>
<p dir="ltr">Getting a few of these errors per dataset shouldn't be too much of a problem. See the relevant entry in the FAQ for details: <a href="http://www.brain.org.au/software/mrtrix/faq.html#converge">http://www.brain.org.au/software/mrtrix/faq.html#converge</a></p>
<p dir="ltr">Cheers,<br>
Donald</p>
<p dir="ltr">--<br>
Dr J-Donald Tournier (PhD)</p>
<p dir="ltr">Senior Lecturer, Biomedical Engineering<br>
Division of Imaging Sciences & Biomedical Engineering<br>
King's College London</p>
<p dir="ltr">A: Department of Perinatal Imaging & Health, 1st Floor South Wing, St Thomas' Hospital, London. SE1 7EH<br>
T: +44 (0)20 7188 7118 ext 53613<br>
W: <a href="http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering">http://www.kcl.ac.uk/medicine/research/divisions/imaging/departments/biomedengineering</a><br>
</p>
<div class="gmail_quote">On 21 May 2014 19:23, "Supreet kaur" <<a href="mailto:ksupreet6@gmail.com">ksupreet6@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div><div><div><div>Dear MRtrix users,<br><br></div>I have been running the CSD on our neonatal DTI dataset, our DTI data was acquired on the GE scanner with 30 gradient directions and b value of 1000. However, during the CSD computation, I am getting series of error messages: <br>
<br></div>"csdeconv: not enough negative directions! failed to converge".<br><br></div>I'm attaching the gradient directions text file. <br><br></div>I'll appreciate your response.<br><br></div>Thanks in advance,<br clear="all">
<div><div><div><div><div><div><br><br><div>Sincerely,<br><br>Supreet kaur,</div>
<div>Biomedical research engineer,<br>Nationwide Childrens Hospital,<br>Columbus, OH<br>(614)355-6659.</div>
</div></div></div></div></div></div></div>
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