What is the typical field strength of magnets used in clinical MRI?
Magnetic field strengths of 0.5 to 3 Tesla (equivalent to 10,000 to 60,000 times the magnetic field strength of the Earth) are typically used in clinical MRI scanners, most often created by a superconducting magnet. Higher field strengths are desirable, as image signal-to-noise ratio (SNR) increases linearly with field strength, although there is a limit because the rate of energy deposition in tissue also increases with the square of field strength.
