Research
Automatic RF system for MRI coils (antennas)
Every person is unique and this statement is especially true when it comes to tuning and matching RF coils for MRI. The aim of frequency tuning and impedance matching is to make sure the coil resonates at the Larmor frequency and simultaneously has an impedance such that maximum power is transferred between RF coil and patient. Generating RF power comes at an expense and in the transmission phase, the ability to transfer this power efficiently to the subject changes the dynamic of power management. Meanwhile, at the receiving end, matching provides the ability to minimize noise, thus increasing the SNR of the image acquired. Real-time tuning and matching of multi- channel coils at ultra-high fields can reduce scanning time multi-fold and increase the overall image quality. This project strikes a perfect balance between RF hardware design and hardware language in order to maximize the utilization of such an automated RF circuit.
https://www.nature.com/articles/s41598-022-26143-9
Simultaneous RF transmit and receive (Full-duplex RF) system
STAR MRI is a currently researched technology with the goal of bringing to market a fast, low-power and portable medical imaging system by adapting what is referred to in communication systems as “full-duplex”. STAR systems are always receiving signals from the tissue because it requires no down time between transmitting and receiving signals. MRI imaging today requires kilowatts of RF power while STAR MRI has the potential to require merely milliwatts using low-flip angle pulse sequences and removing the issue of receiver saturation.
https://ieeexplore.ieee.org/abstract/document/10124038
Artificial electromagnetic (EM) materials
https://ieeexplore.ieee.org/abstract/document/9829263
https://ieeexplore.ieee.org/abstract/document/10286427