X-ray compatible radiofrequency coil for magnetic resonance imaging

Area of Science:

• Medical Imaging
• Biomedical Engineering
• Radiology

Background:

• Conventional radiofrequency (RF) coils for combined X-ray/Magnetic Resonance (XMR) systems pose challenges due to X-ray attenuation.
• Materials in standard coils can obscure patient anatomy in X-ray images, limiting their utility.

Purpose of the Study:

• To develop and evaluate an X-ray compatible RF coil design with minimal X-ray attenuation.
• To ensure the new coil design does not interfere with X-ray imaging or degrade MR performance.

Main Methods:

• An X-ray compatible coil design was created using aluminum conductors and strategically positioning elements outside the X-ray field of view (FOV).
• A surface coil and an abdominal phased array coil were constructed using this design.
• X-ray attenuation and MR imaging characteristics were assessed and compared to conventional coils.
• Patient imaging was performed during interventional procedures in an XMR system using the compatible phased array coil.

Main Results:

• The X-ray compatible coils exhibited minimal attenuation in X-ray images.
• Excellent Magnetic Resonance (MR) imaging qualities were maintained.
• Fluoroscopic X-ray image acquisition was successful without coil-related degradation during patient procedures.

Conclusions:

• The developed X-ray compatible RF coil design effectively addresses limitations in XMR systems.
• This innovation allows for simultaneous, high-quality X-ray and MR imaging during interventions.
• The coils facilitate improved visualization and patient care in interventional radiology.