Wireless power transfer in magnetic resonance imaging with a detuned birdcage coil
In this work, we develop an application of a transmit birdcage coil for wireless power transfer during the receive phase within a magnetic resonance imaging (MRI) scanner. The study includes numerical simulations and an experimental verification of a numerical model with a clinical birdcage coil. We simulate numerically magnetic fields inside the magnetic resonance imaging scanner with a phantom, the specific absorption rate distributions with a human voxel model, and the resulting voltage on receiving system coils. Therefore, we characterize possible distortions in MR images, demonstrate safety of the setup for a patient, and evaluate the RF-RF efficiency numerically, respectively. Finally, we outline potential devices placed in MRI bore which can provide a wireless power supply with the detuned birdcage coil and receive system.