Please make sure that you didn't put 0 or a negative value at "b-value" section.<br><br><div class="gmail_quote">On Sun, Nov 14, 2010 at 12:05 PM, Kevin Spitler <span dir="ltr"><<a href="mailto:kevinspitler@ucla.edu">kevinspitler@ucla.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<br>
<br>
I am able to load my data into DTI Studio and can (on the DtiMap tab) run<br>
Original ADC Mean STD<br>
Mean (DWIs, B0s)<br>
<br>
My problem is that when I try either Calculation >> Tensor , Color Map, etc<br>
or Calculation >> ADC Map<br>
<br>
I get completely black views for axial, sagital, and coronal (and the<br>
3d view in the upper left). I do not get an error message. What<br>
could be causing this?<br>
<br>
I get the same results regardless of choosing "create a mask image<br>
based on the background noise level 10" or choosing to "Select a mask<br>
image b0"<br>
<br>
I am using DTI Studio 3.0.3 (Sept 2010) on Windows 7 OS.<br>
<br>
My old data files load and I can do tractography on my old data.<br>
<br>
I am using Siemens Gradient:<br>
0: 0, 0, 0<br>
1: 1.000000, 0.414250, -0.414250<br>
2: 1.000000, -0.414250, -0.414250<br>
3: 1.000000, -0.414250, 0.414250<br>
4: 1.000000, 0.414250, 0.414250<br>
5: 0.414250, 0.414250, 1.000000<br>
6: 0.414250, 1.000000, 0.414250<br>
7: 0.414250, 1.000000, -0.414250<br>
8: 0.414250, 0.414250, -1.000000<br>
9: 0.414250, -0.414250, -1.000000<br>
10: 0.414250, -1.000000, -0.414250<br>
11: 0.414250, -1.000000, 0.414250<br>
12: 0.414250, -0.414250, 1.000000<br>
<br>
Thanks for your help<br>
Kevin<br>
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</blockquote></div><br>