I am using the same gradient table as before, which worked with the low resolution data (large slice thickness).<br><br>We are using a 3T Trio scanner in Siemens.<br><br>Would it help if I attached one of the files from a recent scan?<br>
<br>Best,<br>Kevin<br><br><div class="gmail_quote">2010/3/20 cwber <span dir="ltr">&lt;<a href="mailto:cwber@126.com">cwber@126.com</a>&gt;</span><br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
<div>How did you get the gradient table, there&nbsp;maybe something wrong in your gradient table, you can check it, and which factory&#39;s machine did you use philips, GE,or Semense?<br></div>
<div>--<br>
<div>³Âನ<br></div></div><br><pre>ÔÚ2010-03-20&nbsp;22:09:12£¬&quot;Kevin&nbsp;Spitler&quot;&nbsp;&lt;<a href="mailto:kevinspitler@ucla.edu" target="_blank">kevinspitler@ucla.edu</a>&gt;&nbsp;дµÀ£º
&gt;I&nbsp;haven&#39;t&nbsp;upgraded&nbsp;the&nbsp;operating&nbsp;system.&nbsp;&nbsp;I&nbsp;am&nbsp;still&nbsp;using&nbsp;Windows&nbsp;XP.
&gt;
&gt;Here&nbsp;is&nbsp;the&nbsp;gradient&nbsp;table:
&gt;
&gt;0:&nbsp;0.000,&nbsp;0.000,&nbsp;0.000
&gt;&nbsp;1:&nbsp;0.500,&nbsp;0.000,&nbsp;0.500
&gt;&nbsp;2:&nbsp;-0.500,&nbsp;0.000,&nbsp;0.500
&gt;&nbsp;3:&nbsp;0.000,&nbsp;0.500,&nbsp;0.500
&gt;&nbsp;4:&nbsp;0.000,&nbsp;0.500,&nbsp;-0.500
&gt;&nbsp;5:&nbsp;0.500,&nbsp;0.500,&nbsp;0.000
&gt;&nbsp;6:&nbsp;-0.500,&nbsp;0.500,&nbsp;0.000
&gt;&nbsp;7:&nbsp;1.000,&nbsp;0.000,&nbsp;1.000
&gt;&nbsp;8:&nbsp;-1.000,&nbsp;0.000,&nbsp;1.000
&gt;&nbsp;9:&nbsp;0.000,&nbsp;1.000,&nbsp;1.000
&gt;&nbsp;10:&nbsp;0.000,&nbsp;1.000,&nbsp;-1.000
&gt;&nbsp;11:&nbsp;1.000,&nbsp;1.000,&nbsp;0.000
&gt;&nbsp;12:&nbsp;-1.000,&nbsp;1.000,&nbsp;0.000
&gt;
&gt;Thanks&nbsp;for&nbsp;your&nbsp;help!&nbsp;&nbsp;Please&nbsp;let&nbsp;me&nbsp;know&nbsp;what&nbsp;else&nbsp;I&nbsp;can&nbsp;send
&gt;
&gt;Best,
&gt;Kevin
&gt;
&gt;
&gt;On&nbsp;Thu,&nbsp;Mar&nbsp;18,&nbsp;2010&nbsp;at&nbsp;6:54&nbsp;AM,&nbsp;susumu&nbsp;mori&nbsp;&lt;<a href="mailto:susumu@mri.jhu.edu" target="_blank">susumu@mri.jhu.edu</a>&gt;&nbsp;wrote:
&gt;&gt;
&gt;&gt;&nbsp;Have&nbsp;you&nbsp;recently&nbsp;upgraded&nbsp;the&nbsp;operating&nbsp;system?&nbsp;Can&nbsp;I&nbsp;see&nbsp;the&nbsp;gradient&nbsp;table&nbsp;you&nbsp;used?
&gt;&gt;
&gt;&gt;&nbsp;On&nbsp;Wed,&nbsp;Mar&nbsp;17,&nbsp;2010&nbsp;at&nbsp;11:32&nbsp;PM,&nbsp;Kevin&nbsp;Spitler&nbsp;&lt;<a href="mailto:kevinspitler@ucla.edu" target="_blank">kevinspitler@ucla.edu</a>&gt;&nbsp;wrote:
&gt;&gt;&gt;
&gt;&gt;&gt;&nbsp;Hello,
&gt;&gt;&gt;
&gt;&gt;&gt;&nbsp;We&nbsp;have&nbsp;recently&nbsp;starting&nbsp;acquiring&nbsp;high&nbsp;resolution&nbsp;scans&nbsp;and&nbsp;I&nbsp;am&nbsp;having&nbsp;difficulty&nbsp;loading&nbsp;them&nbsp;into&nbsp;DTI&nbsp;Studio.&nbsp;&nbsp;I&nbsp;am&nbsp;using&nbsp;the&nbsp;same&nbsp;12&nbsp;direction&nbsp;gradient&nbsp;that&nbsp;worked&nbsp;on&nbsp;the&nbsp;low&nbsp;resolution&nbsp;(large&nbsp;slice&nbsp;thickness).&nbsp;&nbsp;Although&nbsp;the&nbsp;DTI&nbsp;Studio&nbsp;program&nbsp;does&nbsp;not&nbsp;crash,&nbsp;the&nbsp;color&nbsp;map&nbsp;0&nbsp;generated&nbsp;is&nbsp;not&nbsp;correct&nbsp;(random&nbsp;color&nbsp;patterns&nbsp;over&nbsp;the&nbsp;tissue).
&gt;&gt;&gt;
&gt;&gt;&gt;&nbsp;The&nbsp;study&nbsp;was&nbsp;performed&nbsp;on&nbsp;a&nbsp;3T&nbsp;Trio&nbsp;scanner&nbsp;in&nbsp;Siemens.
&gt;&gt;&gt;&nbsp;b&nbsp;values&nbsp;are&nbsp;b=0,&nbsp;b=600,&nbsp;b=1200
&gt;&gt;&gt;&nbsp;Direction&nbsp;is&nbsp;12
&gt;&gt;&gt;
&gt;&gt;&gt;&nbsp;I&nbsp;can&nbsp;provide&nbsp;more&nbsp;information&nbsp;or&nbsp;attach&nbsp;files&nbsp;if&nbsp;that&nbsp;would&nbsp;help&nbsp;solve&nbsp;the&nbsp;problem.&nbsp;&nbsp;Thanks&nbsp;for&nbsp;your&nbsp;help
&gt;&gt;&gt;
&gt;&gt;&gt;&nbsp;Best,
&gt;&gt;&gt;&nbsp;Kevin
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