EMC Professional Talk: EMC Challenges in Magnetic Resonance Imaging

#EMC #lecture #Professional

Magnetic Resonance Imaging (MRI) is an electromagnetic interaction between ¹H atoms and magnetic fields spanning a frequency band from DC up to 1 GHz. An MR image requires simultaneous operation of a static magnetic field that is permanently on (DC), spatial encoding gradient fields
switching at frequencies up to a few kHz, and RF excitation fields to perturb magnetic moment of ¹H atoms, i.e., spins, in the order of a few 100 MHz. Sensitive receiver electronics in MRI is optimized to acquire RF signals on the order of a few micro Volts. All these combined, an MRI system presents a very interesting case for EMC, especially when external devices, e.g., for patient monitoring, and hybrid imaging systems are introduced.

In this talk, EMC challenges in MRI will be described and state-of-the-art solutions will be introduced. Unsolved problems of EMI in MRI and their potential solutions will be discussed. After this seminar, participants are expected to describe the basics of MRI hardware, interaction of the fields generated during MRI with external devices and living tissue, EMC techniques used for MRI compatibility and safety of medical implants and devices.

Event Details