<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:"\@MS Mincho";
panose-1:2 2 6 9 4 2 5 8 3 4;}
@font-face
{font-family:Verdana;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:blue;
text-decoration:underline;}
p
{mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman";}
span.EmailStyle19
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
div.Section1
{page:Section1;}
/* List Definitions */
@list l0
{mso-list-id:1057317616;
mso-list-type:hybrid;
mso-list-template-ids:1290706874 67698705 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-text:"%1\)";
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
-->
</style>
</head>
<body lang=EN-US link=blue vlink=blue>
<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi Eric,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>For Philips scanner there are several
types of gradient tables you can specify in the scanner. Please check your
protocol for the following points;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>1)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Gradient table: High (32-orientation)/ Medium (15-orientation) /
Low (6-orientation)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>2)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Overplus (ON / OFF)<o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'><span style='mso-list:Ignore'>3)<font size=1 face="Times New Roman"><span
style='font:7.0pt "Times New Roman"'> </span></font></span></span></font><![endif]><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>Oblique plane (X/Y/Z angles)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>The first option has 3 choices and the
second option has 2 choices. Therefore, there are 3 x 2 = 6 gradient tables.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If the second option (Overplus) is NO, the
third option has no effect. If the second option is YES, the gradient table has
to be rotated based on the oblique angles.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>To simplify the DTI processing, we recommend
Overplus = NO.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>We have the basic 6 tables, which can be
used as is if you use Overplus = OFF or Oblique angles = 0/0/0 degree.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Please let us know which options you are
using.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Susumu<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
mristudio-users-bounces@mristudio.org
[mailto:mristudio-users-bounces@mristudio.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>eric Q<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, April 16, 2009
9:44 PM<br>
<b><span style='font-weight:bold'>To:</span></b> mristudio-users@mristudio.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Mristudio-users]
Gradient table</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>Hello Dear DTIstudio users:<br>
<br>
I am new to DTIstudio, I was hoping someone could give me some much needed
advises for beginners.<br>
<br>
<br>
I was trying to obtain the FA values for my brain phantom (PHILIP 3T scanner).
When I clicked on "DTI mapping", it prompted me to enter the
"gradient table", how do I calculate the "gradient table"?<br>
<br>
Thanks in advanced<br>
<br>
Best regards<br>
<br>
Eric<br>
<br>
<br>
<o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=2
face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>
<hr size=2 width="100%" align=center id=stopSpelling>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>Date: Thu, 9 Apr 2009 11:04:09
-0400<br>
From: susumu@mri.jhu.edu<br>
To: mristudio-users@mristudio.org<br>
Subject: Re: [Mristudio-users] MriView3D application close<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>Hi Hugh,</span></font></span><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>When you
got this error, please suspect one of the following two reasons;</span></font></span><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>1)
Memory shortage:</span></font></span><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>Even if
you have many GB of memories, 32-bit Windows system can allocate only 1 - 1.5
GB to each program. To check if you have the memory problem, please restrict
the slices to be calculated. In the initial data parameter window, there
is a section called "Slices to be processed". Here you can specify
only a portion of slices to be processed. Please limit the slices to, for
example, 0-9 and see how it goes. If you can calculate tensors without errors,
then you have the memory problem. The solution is; a) upgrade to the 64-bit
system or b) devide the calculation to 2 batches (e.g. slice 0-29 for the first
batch and 30-59 for the second batch), calculate all maps (e.g. FA), and later
combine them.</span></font></span><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>2)
Mismatch between the gradient table and the number of images:</span></font></span><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>For
example, if you specify 12-orientation table and 30 volume images, then you get
the error. After loading the data and before you go to the Dti Map tab, make
sure that you have 1 b0 + 64 DWIs in the pull-down menu in the right column of
the Image tab. If you have the correct number of the images, then you might
have an error in your gradient table. Small mistakes such as missing
"," are often difficult to detect. The best way is; a) load the data
using DtiMapping under the "File" button on the top left, b) close
the window, c) open the image paremater window again by clicking
"DtiMapping" in the "File" button again, d) the window
still remembers the gradient table you entered last time. This remembered
window tells how DtiStudio interpreted your gradient table. If there is any
syntax errors, you may find them much easier. For example, if you enter,
"4: 1 0.5 0", instead of "4: 1, 0.5, 0", then you would
find, "4: 1, 0, 0".</span></font></span><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>If any
of these do not solve the issue, please let us know.</span></font></span><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'> <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=ec230314414-09042009><font size=2 color=blue
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:blue'>Susumu</span></font></span><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><o:p> </o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=2
face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
mristudio-users-bounces@mristudio.org
[mailto:mristudio-users-bounces@mristudio.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Hugh Wang<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, April 08, 2009
6:30 PM<br>
<b><span style='font-weight:bold'>To:</span></b> mristudio-users@mristudio.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Mristudio-users]
MriView3D application close</span></font><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'><o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>Hi, <br>
<br>
I was using the dtistudio (ver. 2.4) to look at the Siemens DICOM
diffusion images (1baseline,64 gradients). After successfully loading the
images, I click the "dti map" option at lower right corner. Whatever
calculation I choose, it always gives me an error: <br>
<br>
"MriView3D MFC Application has encountered a problem and needs to
close. We are sorry for the inconvenience."<br>
<br>
I tried several PCs, and the problem keeped the same. I would appreciate that
if there's anyone having any idea on how to solve it. Thanks.<br>
<br clear=all>
Best,<br>
Hugh<o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=2
face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>
<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Find car news, reviews and more <a
href="http://a.ninemsn.com.au/b.aspx?URL=http%3A%2F%2Fsecure%2Dau%2Eimrworldwide%2Ecom%2Fcgi%2Dbin%2Fa%2Fci%5F450304%2Fet%5F2%2Fcg%5F801459%2Fpi%5F1004813%2Fai%5F859641&_t=762955845&_r=tig_OCT07&_m=EXT"
target="_new">Looking to change your car this year?</a><o:p></o:p></span></font></p>
</div>
</body>
</html>