[Mristudio-users] ADC map from DWI

[Judy James]

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?

Any input/help will be highly appreciated.

Thank you,
Judy James "



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Judy Rose James, Ph.D.
Clinical Physicist, MR Imaging Division
Assistant Professor, Department of Radiology
University of Mississippi Medical Center
Jackson, MS - 39216
Ph: (601) 984-2585; Pager: (601) 929-2442
Email: jjames2 at umc.edu<mailto:jjames2 at umc.edu>
*********************************************************************


________________________________
From: mristudio-users-bounces at mristudio.org [mristudio-users-bounces at mristudio.org] On Behalf Of Jacquie Hodge [Jacquie.Hodge at albertahealthservices.ca]
Sent: Friday, April 08, 2011 11:56 AM
To: mristudio-users at mristudio.org
Subject: [Mristudio-users] Fa values

Good morning everyone,

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.
Here is goes:
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.

I really hope that my question makes sense as I have found it very hard to word properly.

Thank you very much,
Jacquie

Jacquie Hodge MSc candidate in Neuroscience, BSc
Neuroscience, University of Calgary
Research Assistant, Calgary Pediatric Stroke Program
Alberta Children's Hospital
2888 Shaganappi Trail NW, Calgary, AB, Canada T3B 6A8
Phone: 403-955-7733 Fax: 403-955-2922
jacquie.hodge at albertahealthservices.ca
Program website: http://www.calgaryhealthregion.ca/programs/stroke/pediatric.htm

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