[Mristudio-users] ask for help on Philips AcHieva 1.5 T scanner gradient table

[Asrın NALBANT]

Hello, i am new user i dont know very well this programme
so i cant help you.
04 Tem 2013 08:25 tarihinde "罗璐娇" <lujiaoluo1990 at 126.com> yazdı:

> Hello experts,
> I was using dti studio to process my diffusion data obtained from Philips AcHieva
> 1.5 T scanner(medium angular, format: DICOM, in total of 17 images) .
>
> I used the pre-defined gradient table in dti studio listed below, while
> plus the 16th line to exclude the last average image
> 0:   0,    0,    0
> 1:   1.0,  0.0,  0.0
> 2:   0.0,  1.0,  0.0
> 3:   0.0,  0.0,  1.0
> 4:   -0.1789,  -0.1113,  -0.9776
> 5:   -0.0635,  0.3767,  -0.9242
> 6:   0.710,  0.0516,  -0.7015
> 7:   0.6191,  -0.4385,  -0.6515
> 8:   0.2424,  0.7843,  -0.5710
> 9:   -0.2589,  -0.6180,  -0.7423
> 10:   -0.8169,  0.1697,  -0.5513
> 11:   -0.8438,  0.5261,  -0.1060
> 12:   -0.2626,  0.9548,  -0.1389
> 13:   0.0001,  0.9689,  0.2476
> 14:   0.7453,  0.6663,  0.0242
> 15:   0.9726,  0.2317,  0.0209
> 16:    100    100    100
>
> But resulting images were not that fine, and couldn't distinguish the
> fiber orientations clearly. I tried to use mricron (dcm2niigue.exe) to
> obtain the bvecs and bvals file. But it also doesn't work.
> Would you please tell me how to solve this problem?
>
> Thanks so much!
>
>
>
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