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<div><font style="BACKGROUND-COLOR: #ffffff">Is any one in this group aware of how to calculate ADC maps from the original DWI images in DTI studio - not DTI images, like how to set the gradient table in such a case?</font></div>
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Any input/help will be highly appreciated.<br>
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Thank you,<br>
Judy James "<br>
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<div><font face="Sylfaen"><font color="#666699" size="2">*********************************************************************</font></font></div>
<div><font face="Sylfaen" color="#808000" size="2"><font face="Script MT Bold" size="3"><strong>Judy Rose James, Ph.D.<br>
</strong></font>Clinical Physicist, MR Imaging Division</font></div>
<div><font face="Sylfaen" color="#808000" size="2">Assistant Professor, Department of Radiology</font></div>
<div><font face="Sylfaen" color="#808000" size="2">University of Mississippi Medical Center</font></div>
<div><font face="Sylfaen" color="#808000" size="2">Jackson, MS - 39216</font></div>
<div><font face="Sylfaen" color="#808000" size="2">Ph: (601) 984-2585; Pager: (601) 929-2442</font></div>
<div><font face="Sylfaen" color="#808000" size="2">Email: <a href="mailto:jjames2@umc.edu">
jjames2@umc.edu</a></font></div>
<div><font face="Sylfaen" color="#666699" size="2">*********************************************************************</font></div>
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<font face="Tahoma" color="#000000" size="2"><b>From:</b> mristudio-users-bounces@mristudio.org [mristudio-users-bounces@mristudio.org] On Behalf Of Jacquie Hodge [Jacquie.Hodge@albertahealthservices.ca]<br>
<b>Sent:</b> Friday, April 08, 2011 11:56 AM<br>
<b>To:</b> mristudio-users@mristudio.org<br>
<b>Subject:</b> [Mristudio-users] Fa values<br>
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<div dir="ltr"><font face="Arial" color="#000000" size="3">Good morning everyone,
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<div dir="ltr"><font face="arial">I am using DTI studio for my project where I am interested in comparing the left and right CST's in children who have suffereed injury in that area and after reading many studies on DTI decided to compare average FA values
of the tracts as one of my variables. However, I have come across this questino from one of my supervisors and cannot really answer it and am hoping for your help/expertise.</font></div>
<div dir="ltr"><font face="arial">Here is goes:</font></div>
<div dir="ltr">Is the FA value still a viable measure to look at and use to make a correlation if you are using FA values to pull the white matter tract? It seems like if the tract is made from FA values then you should not be able to use the FA as an outcome
variable. This question has come up as I presented my research idea and I'm not sure how to answer it. Most studies that use DTI use FA thresholds to pull the tracts and then also the FA values (eg. mean FA) to make comparisons between the tracts.<br>
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I really hope that my question makes sense as I have found it very hard to word properly.</div>
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<div dir="ltr"><font face="arial">Thank you very much, </font></div>
<div dir="ltr"><font face="arial">Jacquie</font></div>
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<div class="PlainText">Jacquie Hodge MSc candidate in Neuroscience, BSc<br>
Neuroscience, University of Calgary<br>
Research Assistant, Calgary Pediatric Stroke Program<br>
Alberta Children's Hospital<br>
2888 Shaganappi Trail NW, Calgary, AB, Canada T3B 6A8<br>
Phone: 403-955-7733 Fax: 403-955-2922<br>
jacquie.hodge@albertahealthservices.ca<br>
Program website: http://www.calgaryhealthregion.ca/programs/stroke/pediatric.htm</div>
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