<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Hi Christian,</DIV>
<DIV> </DIV>
<DIV>I tried to reply but the email was not delivered for some reasons.</DIV>
<DIV> </DIV>
<DIV>Jun Yi</DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><BR>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><FONT face=Tahoma size=2>----- Forwarded Message ----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Jun Yi Wang <junyiwang2002@yahoo.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> mristudio-users@mristudio.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 28, 2008 1:30:03 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: [Mristudio-users] Optic radiations<BR></FONT><BR>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">
<DIV>Hi Christian,</DIV>
<DIV> </DIV>
<DIV>The other papers might have used the CUT operation. You can use the CUT operation placing at the two ends of the part of the fibers that you want to extract, e.g., one is placed near the LGN and another is placed in the middle of the fiber pathway. But the result may contain fibers from other fiber tracts, such as the corpus callosum. The CUT operation cannot be combined with other operations, so it will be difficult to delete fibers from other tracts if I understand these operations right.</DIV>
<DIV> </DIV>
<DIV>Good luck,</DIV>
<DIV>Jun Yi Wang<BR></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><BR>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif"><FONT face=Tahoma size=2>
<HR SIZE=1>
<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Christian Bieck <c.bieck@T-Online.de><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> mristudio-users@mristudio.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, October 28, 2008 12:49:00 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Mristudio-users] Optic radiations<BR></FONT><BR><FONT face="Courier New" color=#000000 size=2>Hello,</FONT><BR><BR><FONT face="Courier New" color=#000000 size=2>Since my last inquiry seemed to have escaped notice, I write you again </FONT><BR><FONT face="Courier New" color=#000000 size=2>in the hopes of finding a solution to my problem. </FONT><BR><FONT face="Courier New" color=#000000 size=2>As I wrote in my last email, I¢m analyzing the FA values of the optic </FONT><BR><FONT face="Courier New" color=#000000 size=2>radiations and have, so far, extracted them by using </FONT><BR><FONT face="Courier New" color=#000000
size=2>anatomical landmarks and the DTIStudio functions AND, OR and NOT. The </FONT><BR><FONT face="Courier New" color=#000000 size=2>focus of my research concerns the posterior parts of the optic </FONT><BR><FONT face="Courier New" color=#000000 size=2>radiations ending in the primary visual cortex, but I find myself </FONT><BR><FONT face="Courier New" color=#000000 size=2>unable to extract them properly. Using the ROI-Operations in the Fiber </FONT><BR><FONT face="Courier New" color=#000000 size=2>Tab during Fiber Tracking oftentimes results in the removal of entire </FONT><BR><FONT face="Courier New" color=#000000 size=2>fiber tracts instead of just the anterior parts and any attempts to </FONT><BR><FONT face="Courier New" color=#000000 size=2>work with ROI Editor have not been successful so far. </FONT><BR><FONT face="Courier New" color=#000000 size=2>I have seen at least one paper in which the anterior/posterior parts </FONT><BR><FONT
face="Courier New" color=#000000 size=2>and their FA values were examined via DTIStudio, so I know it¢s </FONT><BR><FONT face="Courier New" color=#000000 size=2>possible, but I¢m completely puzzled as how to actually do it. </FONT><BR><FONT face="Courier New" color=#000000 size=2>I would appreciate it *very* much if you could point me in the right </FONT><BR><FONT face="Courier New" color=#000000 size=2>direction. </FONT><BR><FONT face="Courier New" color=#000000 size=2>Thank you for your time. </FONT><BR><BR><FONT face="Courier New" size=2>Cheers,</FONT><BR><FONT face="Courier New" size=2>Christian Bieck</FONT><BR></DIV></DIV></DIV><BR></DIV></DIV></div><br>
</body></html>