Hi, <br><br>I&#39;m running Qdec to gather cortical thickness in specific regions based on the scalar visuals. <br>when I&#39;ve drawn ROIs over certain areas, I&#39;ve found &quot;Mapping labels to subjects&quot; would return an error message for certain subjects. <br>
There error is as follows:<br><br>ERROR: srcvtxno = -1 &lt; 0<br>trgvtxno = 111070, dmin = 1000<br>trgregxyz = 0, 0, 0<br>&nbsp; This means that a vertex in the target surface could<br>&nbsp; not be mapped to a vertex in the source surface<br>
&nbsp; because the xyz of the target is outside of the <br>&nbsp; range of the hash table.<br>command failed: mri_label2label --srclabel rh.pos.orbitalfrontal --srcsubject fsaverage --trgsubject DI_April08_filtered --trglabel rh.pos.orbitalfrontal --regmethod surface --hemi rh<br>
<br>Why would this error occur if the surface data in Qdec is based on the averaging of all the subjects? And how can I best go about fixing this problem? <br><br>Thanks!<br><br>- David Qixiang Chen<br>Neurosurgical Research Assistant<br>
Toronto Western Hospital<br><br>