<div>The vendor (Siemens) should be able to provide the data for you. Every vendor is able to provide the gradient table, it's just a matter of getting in touch with the right person. Unfortunately for you, I don't work at Siemens, so I cannot help.</div> <div> </div> <div>Scott<BR><BR><B><I>์กฐ์์ <hifreaks@gmail.com></I></B> wrote:</div> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"> <DIV>As I know, x,y,z information is not always necessary.</DIV> <DIV>I have succeeded to load Siemens (Trio, 20 dir) Mosaic files with gradient numbers</DIV> <DIV>You only have to not forget to write numbers of 100, 100, 100 and finally 0,0,0 at the end of table.</DIV> <DIV>Here is an example,</DIV> <DIV> </DIV> <DIV>0: -1.000000, 0.000000, 0.000000<BR>1: 0.000000, -1.000000, 0.000000<BR>2: 0.031984, -0.799591, 0.599693</DIV> <DIV>.</DIV> <DIV>.</DIV> <DIV>.</DIV> <DIV>18: -0.111012, -0.264029,
-0.958105<BR>19: -0.031984, -0.799591, -0.599693<BR>20: 100, 100, 100<BR>21: 0,0,0<BR> </DIV> <DIV>If you really want to find the x,y,z information, I'm afraid I can't answer it.</DIV> <DIV>But I have heard that the information is not technically necessary from the computer technologist</DIV> <DIV>working at the Siemens company. He have read the instructions and talked to me like that.</DIV> <DIV> </DIV> <DIV>Wish it would be helpful.</DIV> <DIV> </DIV> <DIV>Regards,</DIV> <DIV> </DIV> <DIV>YJ Cho</DIV> <DIV><BR> </DIV> <DIV><SPAN class=gmail_quote>2008/7/17, Tapan Jani <<A href="mailto:icee41@gmail.com">icee41@gmail.com</A>>:</SPAN> <BLOCKQUOTE class=gmail_quote style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid"> <DIV dir=ltr>Hello all,<BR><BR>I sent out an e-mail earlier about generating a gradient table and am still a little bit confused. In order to use DtiStudio properly, it seems
that one needs a gradient table to go along with their data. Our lab is currently using a 3T Excite GE scanner to perform our DTI scans, but we also have a Siemens scanner for which the following questions apply. Within the dicom header of the GE scanner, under the tag #DTI Diffusion Dir (0019, 01E0), we are able to tell the number of gradients, but not able to find the x,y,z information. <BR><BR>Is there a program that can generate gradient tables to go along with our dicom data, or can it actually be found within the header - and if so, where? Finally I was curious as to whether there are standard gradient tables that go along with specific scanners every time a DTI scan is performed.<BR><BR>Thank you very much for all of your help, it is much appreciated.<BR><BR>Sincerely,<BR><BR>Tapan Jani<BR><BR><A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:tjani2@uic.edu"
target=_blank>tjani2@uic.edu</A><BR> </DIV><BR>_______________________________________________<BR>Mristudio-users mailing list<BR><A onclick="return top.js.OpenExtLink(window,event,this)" href="mailto:Mristudio-users@mristudio.org">Mristudio-users@mristudio.org</A><BR><A onclick="return top.js.OpenExtLink(window,event,this)" href="http://lists.mristudio.org/mailman/listinfo/mristudio-users" target=_blank>http://lists.mristudio.org/mailman/listinfo/mristudio-users</A><BR><BR></BLOCKQUOTE></DIV><BR><BR clear=all><BR>-- <BR>Yang-Je Cho<BR><BR>Dept of Neurology, Yonsei University <BR>College of Medicine, Seoul, Korea<BR>Phone: 82-2-2228-1600, Cell: 016-298-7456, Fax: 82-2-393-0705 _______________________________________________<BR>Mristudio-users mailing list<BR>Mristudio-users@mristudio.org<BR>http://lists.mristudio.org/mailman/listinfo/mristudio-users<BR></BLOCKQUOTE><BR>