Scanner object considering multiple coils

[Stockless]

Generation of a flexible and extensible Scanner object, to controll Hardware Limits, Gradient Behaviour, RF behaviour and magnetic field inhomegeneities.
Based in the pull request #454 and solving the issue #150 , this PR decouple the coils definition from the Phantom structure.

Clone this branch to test it using Julia Pkg:

pkg> add https://github.com/JuliaHealth/KomaMRI.jl:KomaMRIBase#scanner-develop
pkg> add https://github.com/JuliaHealth/KomaMRI.jl:KomaMRICore#scanner-develop
pkg> add KomaMRI

[aTrotier]

The branch works on my side to generate and reconstruct SMS sequence. Can you merge it at some point ?

A missing feature will be have have standard 8/16/32 coils that are close to something real ? Or at least to share in the doc a good snippets to generate them

[jonbmartin]

In my own testing this has worked nicely for a noncartesian sim. Would love to see fully incorporated. Cool development.

[aTrotier]

Can I help on this PR ? :)

[cncastillo]

Hi @aTrotier, yeah help with this PR would be great, as @Stockless is not working on it anymore.

Can you let me know if you need collaborator access to modify it? I can add you.

[aTrotier]

Do you have an idea what remains to be done 😅 I tested this PR a few months ago and it was working for multicoil and then to be able to perform a sense reconstruction.

Maybe I can start to write an example to show what is missing. I think a helper function to write a coherent coil sensitivity map will be great

[cncastillo]

Do you have an idea what remains to be done 😅

If I remember correctly,

• GPU implementations were not finished yet.
• Complex coil sensitivities haven't been tested.
• Add some kind of test, like case without coils = case with coils with sens = 1.

I think a helper function to write a coherent coil sensitivity map will be great

I think so. There is a few things here that might be useful https://github.com/MagneticResonanceImaging/MRIReco.jl/blob/master/MRISimulation/src/CoilSensitivities.jl. In general we just need a function for the ith coil evaluated at positions x,y,z.

Let me finish #612 first, that will change how some things work, and I will ping here again.

[aTrotier]

Never worked on GPU programming but it might be the opportunity to learn something.

…

------------------------------------------------------------ TROTIER Aurélien 31 allée de la Biotte 33470 Gujan-Mestras 06.09.12.61.61 ***@***.*** Le mer. 19 nov. 2025, 01:25, Carlos Castillo Passi ***@***.***> a écrit :

*cncastillo* left a comment (JuliaHealth/KomaMRI.jl#548) <#548 (comment)> Do you have an idea what remains to be done 😅 If I remember correctly, - GPU implementations were not finished yet. - Complex coil sensitivities haven't been tested. - Add some kind of test, like case without coils = case with coils with sens = 1. I think a helper function to write a coherent coil sensitivity map will be great I think so. There is a few things here that might be useful https://github.com/MagneticResonanceImaging/MRIReco.jl/blob/master/MRISimulation/src/CoilSensitivities.jl. In general we just need a function for the ith coil evaluated at positions x,y,z. Let me finish #612 <#612> first, that will change how some things work, and I will ping here again. — Reply to this email directly, view it on GitHub <#548 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC5P7OYA3TRT2KQIN6SIZPD35O2HXAVCNFSM6AAAAABZBRVIRSVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZTKNJQGAYTQNJQGA> . You are receiving this because you were mentioned.Message ID: ***@***.***>