Design of a reconfigurable endoluminal coil using MEMS switches

Hamza Raki (1) , Kevin Tse-Ve-Koon (1) , Henri Souchay (2) , Fraser Robb (3) , Simon Lambert (1) , Olivier Beuf (1)

1 RMN et optique : De la mesure au biomarqueur
2 GE Healthcare - General Electric Medical Systems [Buc]
3 GE Healthcare - General Electric Healthcare (Entreprise)

Endoluminal Magnetic Resonance Imaging (MRI) is an alternative solution to conventional MRI, which is still not sufficient to image the bowel and colon wall. However, it mainly suffers from coil-sensitivity-map variations with coil-orientations within respect to the main magnetic field (B0). The purpose of this work was to study numerically different coil-geometries and their performances when positioned in different orientations regarding B0. From the simulation results, a solution of a reconfigurable endoluminal-coil using four MEMs switches is proposed. ElectroMagnetic (EM) simulation demonstrated the feasibility to reduce the coil-sensitivity variations by using a combination of Single-loop (SL) and Double-Turn-Loop (DTL) configurations.

Domaines: Imagerie

Hamza Raki, Kevin Tse-Ve-Koon, Henri Souchay, Fraser Robb, Simon Lambert, et al.. Design of a reconfigurable endoluminal coil using MEMS switches. 27th Annual meeting of the ISMRM, May 2019, Montréal, Canada. ⟨hal-02266838⟩