[Mristudio-users] Coordinate system

[Seongjin]

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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