Localizer lines on DICOM images

[al...@gawab.com]

Dear friends,

In magnetic resonance imaging with two or more series having same
FrameofReferenceUID, how can I create SCOUT/LOCALIZER lines?
I tried with David Clunie's Code for drawing Localizer lines on DICOM
images
http://www.dclunie.com/medical-image-faq/html/part2.html.
But for some series, instead of getting a single line(i.e. out put
rectangle's all four lines will pile up on top of each other), I am
getting a trapezoid shape.

Could anyone please tell me , why this phenomenon is happening and
what is the solution for this issue?

Thanks and Regards
Vayanad

[David Clunie]

Perhaps because the source image and the localizer are not orthogonal ?

Have you looked at the Image Orientation (patient) values of both images
to see if they are not at 90 degrees ?

[al...@gawab.com]

Dear David

Thanks for the reply.

could you please tell me how can I calculate whether both images are
not in 90 degrees.
Following are the details of scout image and the other image:
/
*****************************************************************************************************************/
Scout Image details
***********************
ImagePosition - -124.839\-103.748\-15.2235
ImageOrientation 1.0\-0.0\0.0\-0.0\0.994919\-0.100679
Pixel Spacing 0.468757\0.468750

width 512
height 512

Compare Image Details:
***************************
Image Position -122.561\-81.0219\104.03
Image Orientation
0.998612\-0.0510888\-0.012818\-0.0\0.243354\-0.969937
PixelSpacing 0.468751\0.468743

width 512
height 512

/
*****************************************************************************************************************/

Also, if the images are not at 90 degree, then how can I calculate
scout lines using the calculation on your web site.

Thanks and Regards
Vayanad

[al...@gawab.com]

Dear friends,

Is there any open source code available which draws scout lines if the

source image and the localizer are not orthogonal ?

Thanks and Regards
Vayanad

[David Clunie]

Have you looked at the com.pixelmed.geometry.IntersectSlice subclass
of the LocalizerPoster in my PixelMed toolkit ?

al...@gawab.com wrote:
> Dear friends,
>
> Is there any open source code available which draws scout lines if the

> source image and the localizer are not orthogonal ?
>
>

> Thanks and Regards
> Alvin

[chandan...@gmail.com]

can you please tell me the calculation using above information