For ADC, please use "Trace". If you divide this by 3, it is what people usually call "Mean Diffusivity", or "Average Diffusion Constant". Because there are several nomenclature with inconsistent usage, we decided to use "trace" which has no ambiguity. The mean ADC in the old version of DtiStudio is "mean apparent diffusion constant" which is the mean of all the "apparent (not average) diffusion constants" along various diffusion encoding directions. I strongly recommend to use trace, not the "mean ADC" in the older version.<br>
<br><div class="gmail_quote">On Wed, Apr 18, 2012 at 4:58 AM, maya weinstein <span dir="ltr"><<a href="mailto:weinmaya@gmail.com">weinmaya@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div>Hi MRIstudio users,</div><div> </div><div>In the older versions when you calculated the ADC map there was a value for a mean ADC map which is missing from the new version.</div><div>Is there an automatic way to calculate a mean ADC map?</div>
<div> </div><div>Thanks,</div><div>Maya<span class="HOEnZb"><font color="#888888"><br clear="all"><br>-- <br></font></span></div><span class="HOEnZb"><font color="#888888"><div dir="ltr">Maya Weinstein<br>Department of Psychology, Bar-Ilan University<br>
Functional Brain Imaging Unit, Wohl Institute for Advanced Imaging, Tel-Aviv Sourasky Medical Center</div>
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