[Mristudio-users] Coordinate system

[susumu mori]

These axis definitions are very confusing. If you are asking to get a
correct gradient table, I recommend you to use Jon Farrell's gradient table
calculator for Philips scanners.

On Thu, Sep 23, 2010 at 1:14 PM, [Seongjin] <choisj70 at gmail.com> wrote:

> Thanks for your reply.
>
> One question about the I->S in Philips scanners.
> I heard of that in Philips system +Z direction is S->I.
> I wonder if I am correct on this.
>
> If that so, +X = R->L, +Y = A->P, +Z = S->I in Philips scanners.
> A bit deviation from LPS system regarding +z direction.
>
> Sincerely,
> -Seongjin
>
>
>
> On Thu, Sep 23, 2010 at 12:49 PM, Hangyi Jiang <hjiang at jhmi.edu> wrote:
>
>> hi,
>>
>> for axial slicing human brain,  the X-Y-Z system is in LPS anatomical
>> direction.   or X = R->L,  Y=A->P, Z=I->S;
>>
>> hangyi
>>
>> ________________________________________
>> From: mristudio-users-bounces at mristudio.org [
>> mristudio-users-bounces at mristudio.org] On Behalf Of [Seongjin] [
>> choisj70 at gmail.com]
>> Sent: Thursday, September 23, 2010 11:46 AM
>> To: DTI Studio, ROI Editor, Landmarker Questions/Support
>> Subject: [Mristudio-users] Coordinate system
>>
>> Dear all,
>>
>> Simple question about the coordinate system in the Philips Scanners.
>> I would like to confirm the axis directions in terms of X-Y-Z coordinate
>> system.
>>
>> I guess, the axis directions
>> 1) I-S(foot-to-head, inferior-to-superior) is "negative Z" direction
>> 2) A-P(anterior-to-posterior) is "negative Y" direction
>> 3) R-L(right-to-left) is "positive X" direction.
>>
>> If I knew this incorrectly, please correct my guess.
>>
>> Sincerely,
>> -SC
>>
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>
>
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