<div dir="ltr">Hi Rotem,<div><br></div><div>I'm not quite sure what you want to do in #2. Are you trying to use, say, a T1-weighted image, as a reference image and register all DWIs to the anatomical scan?</div><div><br>
</div><div>If you want to do so, you need to load both T1 and DTI data within one window. It may work, but the AIR in DtiStudio was developed for intra-DTI motion correction, not for cross-scan registration. So, I've never tried it.</div>
<div><br></div><div>For the cross-scan, within-subject image alignment, we usually perform DTI calculation first, and then register images (e.g. T1 vs DTI) using DiffeoMap.</div><div><br></div><div>Susumu</div><div><br></div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Aug 19, 2013 at 6:57 AM, Rotem Saar <span dir="ltr"><<a href="mailto:saar.rotem@gmail.com" target="_blank">saar.rotem@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="rtl"><div dir="ltr">Dear <span>experts</span>,</div><div dir="ltr"> </div><div dir="ltr">I am a new user of DTI studio who wants to analyze my DTI data using DTIstudio. </div>
<div dir="ltr">We use a Philip scanner 1.5T and we are working with DICOMs, 1 b0, 15 gradients and from the last one (17) we ignore. All in all - we have 714 dicoms we enter to DTIstudio.</div>
<div dir="ltr">I'm trying to understand what (and how many) registrations I need to perform - </div><div dir="ltr"> </div><div dir="ltr">1) I want all the DTI images will be referenced to the b0 image. To do that, I guss I need to mark the first gradient in my list (which is the b0) for reference image, under "automatic image registration". Under "images to be registered" I will take all my DTI gradients. I marked the Affine transformation, and it seemed to work.</div>
<div dir="ltr"> </div><div dir="ltr">2) Now, what happens if I want to take the created data on AIR format as created in the last step (I did not mark the "create new images" under "automatic image registration" on purpose) and register it to the anatomical data, <u>and only then </u>- calculate the tensor ? Should I now define the reference image as one of the anatomical images, and under "images to be registered" take all the Air DTI gradients (created in step 1) ?</div>
<div dir="ltr"> </div><div dir="ltr">I read the tutorial, watched all your videos, even read in *.doc file on the net and went to read qs in the forum hopping to find answers - but with no luck.</div><div dir="ltr"> </div>
<div dir="ltr">If you will be able to specified the steps I need to perform / direct me to the place I can find detailed instructions on "automatic image registration" this will help allot !!</div><div dir="ltr">
</div><div dir="ltr">Thank you so much for your help,</div></div>
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