<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Thank you. Searching the mri studio list I have found the answer to my question at this link <span style="font-family: '.HelveticaNeueUI'; font-size: 15px; line-height: 19px; white-space: nowrap; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; "><a href="http://lists.mristudio.org/pipermail/mristudio-users/2011/001936.html">http://lists.mristudio.org/pipermail/mristudio-users/2011/001936.html</a></span></div><div><br></div><div>Thanks<br>On Nov 10, 2013, at 2:16 PM, "Shaimaa Abdelsattar" <<a href="mailto:shaimaa96@hotmail.com">shaimaa96@hotmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div><br></div><div><br><br></div><blockquote type="cite"><div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>Thank you, and sorry for asking again,</div><div>I found that in DTI studio there are 3 eigen values 0,1, and 2 instead of 1,2, and 3 seen in the literature. So is the largest eigen value in DTI studio that represents axial diffusivity istill <span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); ">λ1</span> <span style="-webkit-tap-highlight-color: rgba(26, 26, 26, 0.292969); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); "> or </span> it is represented by eigen value 0 instead of 1?</div></div></blockquote><blockquote type="cite"><div><div><br></div><div><br></div>Thank you for your concern<br><br>On Nov 5, 2013, at 8:49 AM, "ranjan piyush" <<a href="mailto:ranjanpiyush007@gmail.com">ranjanpiyush007@gmail.com</a>> wrote:<br><br></div><blockquote type="cite"><div><div dir="ltr">Hi Shaimaa,<div><br></div><div>I think the parallel diffusivity that you are talking about is actually the largest eigen value (λ1). </div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Nov 4, 2013 at 8:22 PM, Shaimaa Abdelsattar <span dir="ltr"><<a href="mailto:shaimaa96@hotmail.com" target="_blank">shaimaa96@hotmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello experts,<br>
How can i calculate parallel diffusivity (along the axon).<br>
Thanks<br>
Shaimaa<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div dir="ltr"><div>Ranjan Piyush<br>M.S. Scholar<br>NIID Lab (MSB 207B)<br>IITM Chennai.<br><br></div>Mob: 8056026976<br></div>
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