Hi SC,<div><br></div><div>I don't have much experience with 7T yet.</div><div>For 1.5T and 3T, I use 2.5mm isotropic resolution for 1.5T and 2.2mm for 3T. I think 2.0mm is possible with 3T, but I prefer to have higher SNR (2.2mm) than higher resolution (2.0mm)</div>
<div><br></div><div>For both Ts, I use the same 96x96 matrix (zerofilled to 192x192 (Siemens) or 256x256 (Philips)) so the FOV is 240 (2.5mm) or 212 (2.2mm).</div><div><br></div><div>For 1.5T, I use at least 60 DWIs (about 8-9 min), preferably 90 DWIs (more than 10 min less than 15 min) and for 3T 24 - 60 DWIs (4.5-9 min).</div>
<div><br></div><div>This means, for Siemens, 12-orientation x multiple scans and for Philips 32-orientation x multiple scans.</div><div><br></div><div>I prefer b-value = 700, but 1,000 is also fine. </div><div><br></div><div>
Parallel imaging is "must".</div><div><br></div><div>TE/TR is shortest, although for Philips, I add 5-10 ms to the shortest TE due to Eddy current and gradient load issue. </div><div><br></div><div><br><br><div class="gmail_quote">
On Tue, Aug 2, 2011 at 8:34 AM, [Seongjin] <span dir="ltr"><<a href="mailto:choisj70@gmail.com">choisj70@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Dear Susumu,<br><br>I wonder do you have any reference parameter sets for different filed strenghts, e,g, 1.5 T, 3T, or 7T?<br><br>All of the best,<br>-SC<div><div></div><div class="h5"><br><br><div class="gmail_quote">On Tue, Aug 2, 2011 at 8:02 AM, susumu mori <span dir="ltr"><<a href="mailto:susumu@mri.jhu.edu" target="_blank">susumu@mri.jhu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">Hi Lydia,<div><br></div><div>you first have to specify the filename in the opening data input window.</div>
<div>Then at the end of the session, DtiStudio asks where to save the info.</div><div><br></div><div>We recently start using pixel-rejection instead of manual slice-by-slice quality check. Please see <a href="https://www.mristudio.org/wiki/changelog/dtistudio-3.0.2" target="_blank">https://www.mristudio.org/wiki/changelog/dtistudio-3.0.2</a> for detail.</div>
<div><br></div><div><font color="#888888">Susumu</font><div><div></div><div><br><br><div class="gmail_quote">On Tue, Aug 2, 2011 at 7:49 AM, Lydia Wachsmuth <span dir="ltr"><<a href="mailto:lydia.wachsmuth@uni-muenster.de" target="_blank">lydia.wachsmuth@uni-muenster.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">Hello,<br>
I am trying to remove bad images from my DTI-datasets.<br>
I work with Bruker data, 5 A0images, 30 directions (2 experiments / diff<br>
direction).<br>
I can load the data to the original image window, and cross out selected<br>
images. How do I save at this step in order to get the .flg file?<br>
Any suggestion will be appreciated<br>
Thank you<br>
Best,<br>
Lydia<br>
<br>
--<br>
Dr. phil.nat. Lydia Wachsmuth<br>
AG Experimentelle Magnetische Kernresonanz<br>
Institut für Klinische Radiologie - Universitätsklinikum Münster<br>
Westfälische Wilhelms-Universität Münster<br>
Waldeyerstr. 1 (Haus Rosenbach)<br>
48149 Münster<br>
GERMANY<br>
Tel: <a href="tel:%2B49%20251%2083%2056146" value="+492518356146" target="_blank">+49 251 83 56146</a><br>
Fax: <a href="tel:%2B49%20251%2083%2052067" value="+492518352067" target="_blank">+49 251 83 52067</a><br>
<br>
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