[Mristudio-users] Gradient Table for Philips

[Chunxiao Zhou]

Dear Alex,

Thank you very much for your prompt response.

 The attached is my .par file. Do you mean that  the "#  diffusion (ap, fh,
rl)     (3*float)" , for example  -0.001   -0.076   -0.997, is a diffusion
direction? Since there are 33 directions in my .PAR file and are labeled
from 1 to 33, should I change their label to 0,1,..32?  In addition , should
I add a extra line (33) with 100, 100, 100 in the end of the gradient table?

By the way, is there any way based on the result I can check whether I use
the right gradient table?

Again, thank you for your time and help!

Chunxiao(Andrew)

On Tue, Nov 23, 2010 at 5:21 PM, Dresner, Alex <alex.dresner at philips.com>wrote:

>  Dear Chunxiao,
>
> Your gradient table is also in the .PAR file.  You should be able to read
> the .PAR file with any text reader such as WordPad, NotePad or Word; lower
> in the file is a table of parameters per-image.  On the right-hand-side of
> that table are the diffusion directions in three columns.
>
>
>
> Regards,
>
> Alex
>
>
>
> ____________________
>
> M. Alex Dresner, Ph.D.
>
> MR Clinical Scientist
>
> alex.dresner at philips.com
>
> ____________________
>
>
>
>
>
>
>
> *From:* mristudio-users-bounces at mristudio.org [mailto:
> mristudio-users-bounces at mristudio.org] *On Behalf Of *Chunxiao Zhou
> *Sent:* Tuesday, November 23, 2010 5:07 PM
> *To:* mristudio-users at mristudio.org
> *Subject:* [Mristudio-users] Gradient Table for Philips
>
>
>
> Hello,
>
>
>
> When I do tensor calculation for my own data , there is a warning message
> "File size is bigger than DW-image size, continue anyway?". I get all image
> size parameters from my .par file ( I use Philip .REC .PAR data). I guess
> the reason is that I use the default ParRec gradient table from your
> GradientTable file. How could I get my gradient table from my file?
>
>
>
> Thank you.
>
>
>
> Chunxiao(Andrew)
>
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