[Mristudio-users] 12 direction Siemens Trio 3T gradient table

susumu mori susumu at mri.jhu.edu
Thu Jul 2 12:25:06 EDT 2009


Please let me know if this doesn't work.

Also, Siemens users should be very careful about how to deal with oblique
angles. Unless you are using the latest operating system, you have to use
the "Rotate gradients if applicable" option to recalculate the table. You
can find this option in the initial data input window just beneath the
section for gradient table. I strongly suggest to do one quick test by
scanning a person with severe oblique angle. If you are using DICOM or
Mosaic, the oblique information is automatically read and table is
recalculated once this option is activated.


0: 0, 0, 0
1:  1.000000, 0.414250, -0.414250
2:  1.000000, -0.414250, -0.414250
3:  1.000000, -0.414250, 0.414250
4:  1.000000, 0.414250, 0.414250
5:  0.414250, 0.414250, 1.000000
6:  0.414250, 1.000000, 0.414250
7:  0.414250, 1.000000, -0.414250
8:  0.414250, 0.414250, -1.000000
9:  0.414250, -0.414250, -1.000000
10:  0.414250, -1.000000, -0.414250
11:  0.414250, -1.000000, 0.414250
12:  0.414250, -0.414250, 1.000000

On Thu, Jul 2, 2009 at 11:48 AM, Jiang, Zhiguo <jiangz at ccf.org> wrote:

>  Hi,
>
>
>
> Does anyone have a standard 12 direction Siemens gradient table  to share
> with me? Thanks a lot.
>
>
>
>
>
> Best,
>
>
>
> Tony
>
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