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<p>Hi,</p>
<p><br>
</p>
<p>in the graphical user interface, you can only define coil
positions on the skin surface. You do not define target positions
in the brain, but just where the coil is localed on the head. If
you want to get a coil position that is optimal to target a
specific brain region, please have a look at the ADM optimization
approach.<br>
</p>
<p><br>
</p>
<p>Best,</p>
<p>Axel</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 4/28/2021 5:52 AM, Fryer, Susanna
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:SJ0PR05MB775396AF9403A489DCFDF0F782409@SJ0PR05MB7753.namprd05.prod.outlook.com">
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<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><span>Hello,</span>
<div><br>
</div>
<div>We are trying to model a TMS target that is in deep
medial prefrontal cortex/dorsal ACC, but are having trouble
understanding how to navigate to our desired target, which
we have defined in MNI.
<br>
</div>
<div>We are able to create models at the surface, but can't
seem to navigate the software to go into cortex.<br>
</div>
<div><br>
</div>
<div><br>
</div>
<span>Specifically, how do we convert our MNI coordinate to
the coordinate system that SIMnibs is using (and what
coordinate system is it that SIMnibs uses?). How do we
target below the surface?</span></div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)"><br>
</div>
<div
style="font-family:Calibri,Arial,Helvetica,sans-serif;font-size:12pt;color:rgb(0,0,0)">Thank
you so much for guidance!</div>
<div
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</div>
<span
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<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
Simnibs-discuss mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Simnibs-discuss@drcmr.dk">Simnibs-discuss@drcmr.dk</a>
<a class="moz-txt-link-freetext" href="https://mailman.drcmr.dk/mailman/listinfo/simnibs-discuss">https://mailman.drcmr.dk/mailman/listinfo/simnibs-discuss</a>
</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Dr. Axel Thielscher
Associate Professor
Danish Research Center for Magnetic Resonance
Copenhagen University Hospital Hvidovre
DK-2650 Hvidovre, Denmark
<a class="moz-txt-link-abbreviated" href="http://www.drcmr.dk">www.drcmr.dk</a>
&
Department of Health Technology
Technical University of Denmark
DK-2800 Kgs. Lyngby
<a class="moz-txt-link-freetext" href="http://www.healthtech.dtu.dk/">http://www.healthtech.dtu.dk/</a></pre>
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