<span style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Hello, </span><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<br></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">I am analyzing MEG CTF data. I want to do source localisation and I have two particular questions regarding the anatomical MRI images.</div>
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1. Is it allowed to use anatomical MRI images from a two different MRI devices in a one source localisation study? We already have routinely obtain anatomical images for some patients and those are obtained on the 1.5 Tesla MRI. And for other patients we will record anatomical MRI on 3 Tesla. So, what do you think can we use this data in the same source analysis study. </div>
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2. The anatomical MRI images from a few subject were not marked with the vitamin E during imaging for relevant skull points (nasion and ear canals). So, I think to mark them now in some imaging software. The MEG data were properly marked during acquisition for this skull points. </div>
<div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">What is your opinion about accuracy of software based marking. How big localisation error might be?</div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<br></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Thank you in advance!</div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<br></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Kind regards!</div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">
<br></div><div style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13px;background-color:rgb(255,255,255)">Nenad</div>