<div dir="ltr">Hi Andres,<div><br></div><div>You can synthesize any number of compartments that you want to define with <i>datasynth</i>, but you can only fit the ones listed in the Panagiotaki et al NeuroImage 2012 paper with <i>modelfit</i>.</div>
<div><br></div><div>Best,</div><div><br></div><div>Laura</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On 15 January 2014 21:57, Andrés Méndez <span dir="ltr"><<a href="mailto:andres.mendezg@gmail.com" target="_blank">andres.mendezg@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Thanks for the answer. <div><br></div><div>So I cannot define, for example "modelfit - TENSORTENSORCYLINDER" to fit the signal combining two tensors and a cylinder? </div>
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</div><div>In the way that ballstickstick are combined in the following example to synthetize the signal from a crossing fiber </div><div><br></div><div><pre style="margin-top:0px;margin-bottom:0px;color:rgb(80,80,80)">
datasynth -synthmodel compartment 3 BALL 0.4 1.7E-9 Stick 0.3 1E-9 1.2 -4.5 Stick 1E-9 0.0 0.0 -schemefile cross.scheme -voxels 1 -outputfile BSScross.Bfloat</pre></div><div><br></div><div><br></div><div><br></div><div>
<br></div></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><span style="font-family:arial,sans-serif;font-size:12.5px;border-collapse:collapse"><div><span style="font-family:arial,sans-serif;font-size:12.5px;border-collapse:collapse"><font color="#999999">_______________________________________________</font></span></div>
<font color="#999999">C. Andrés Méndez G., </font><span style="color:rgb(136,136,136)">Postdoctoral Research Fellow</span><font color="#999999"><br>Department of Computer Science, University of Verona<br>Ca' Vignal 2 - Strada Le Grazie 15, 37134 VERONA - Italy<br>
Tel. <a href="tel:%2B39%20045%20802%207803" value="+390458027803" target="_blank">+39 045 802 7803</a></font></span></div></div><div><div class="h5">
<br><br><div class="gmail_quote">On Wed, Jan 15, 2014 at 6:47 PM, Ferizi, Uran <span dir="ltr"><<a href="mailto:uran.ferizi.10@ucl.ac.uk" target="_blank">uran.ferizi.10@ucl.ac.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<p>Hello Andrés,</p>
<p><br>
</p>
<p>No, in short, it is not possible at present to model many fibers (by the way, modelled through restricted diffusion via Cylinders, and not Tensors).</p>
<p><br>
</p>
<p>We intend to produce a more versatile model soon, which would cater for this sort of problem, but that would be a few months away.<br>
</p>
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<p>Uran<br>
</p>
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<hr style="display:inline-block;width:98%">
<div dir="ltr"><font style="font-size:11pt" color="#000000" face="Calibri, sans-serif"><b>From:</b> <a href="mailto:camino-users-bounces@www.nitrc.org" target="_blank">camino-users-bounces@www.nitrc.org</a> <<a href="mailto:camino-users-bounces@www.nitrc.org" target="_blank">camino-users-bounces@www.nitrc.org</a>> on behalf of Andrés Méndez <<a href="mailto:andres.mendezg@gmail.com" target="_blank">andres.mendezg@gmail.com</a>><br>
<b>Sent:</b> 15 January 2014 12:00 PM<br>
<b>To:</b> <a href="mailto:camino-users@www.nitrc.org" target="_blank">camino-users@www.nitrc.org</a><br>
<b>Subject:</b> [Camino-users] Fitting analytic models (choosing number of restricted compartments)</font>
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<div>
<div dir="ltr">Hello, I'd like to ask a question about data fitting and data synthesis using analytic models.
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<div>Is it possible to fit the data specifying the number N of restricted compartments?. For example, the CHARMED model that in Camino is codified as "Tensor GDRCylinders". Let's say I want to fit a single hindered compartment (Cylinders) and two restricted
diffusion ones (Tensor) in order to account for crossing fibers . Is it possible to do it? </div>
<div><br>
</div>
<div>Thanks in advance. Regards.</div>
<div><br>
</div>
<div>Andrés M.</div>
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</blockquote></div><br></div></div></div>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br> --------------------------------------------------<br> Eleftheria Panagiotaki<br> Centre for Medical Image Computing<br> University College London<br>
Gower Street, London WC1E 6BT,<br> United Kingdom<br> Email: <a href="mailto:panagio@cs.ucl.ac.uk" target="_blank">panagio@cs.ucl.ac.uk</a><br>
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