<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;"><div><br>Hi,<br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr"><pre style="white-space: pre-wrap;"><i>According to:</i></pre><pre style="white-space: pre-wrap;"><i>"I need generate a 3D head model from a resonance, then co register this head model with 10-20 electrode system to create my lead field matrix.
</i>this will work if you have the 3D position of the electrodes".</pre><pre style="white-space: pre-wrap;"><br></pre><pre style=""><font><span style="white-space:pre-wrap">I have only the patient MRIs, but no 3D positions of electrodes, just know that the system used in the acquisition is the 10-20 system with a number of fixed electrodes . Can i make my matrix Leadfield electrode using a template as standard_1020.elc?<br></span></font></pre></div></blockquote>yes, yet on the expense of accuracy. See for instance here: <a href="http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00042/full">http://journal.frontiersin.org/Journal/10.3389/fnins.2014.00042/full</a></div><div>best</div><div>tzvetan</div><div><br><blockquote type="cite"><div dir="ltr"><pre style=""><font><span style="white-space:pre-wrap"><br></span></font></pre><pre style=""><font><span style="white-space:pre-wrap">Regards </span></font></pre><div><br></div>-- <br><div dir="ltr"><div style="text-align:center"><font color="#20124d"><b>Gamaliel Huerta</b></font></div><div style="text-align:center"><font color="#20124d"><b>Ingeniería Civil Biomédica</b></font></div><div style="text-align:center"><font color="#20124d"><b>Universidad de Valparaíso</b></font></div></div>
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