In what unit is the slew rate typically expressed?

The slew rate in magnetic resonance imaging (MRI) is typically expressed in T/m/s, which represents the rate of change of the magnetic field gradient expressed in Tesla per meter per second. This unit captures how quickly the gradient magnetic fields can change, which is crucial for rapid image acquisition and maintaining image quality. A higher slew rate allows for shorter times to switch gradients, which can be essential when imaging fast-moving structures or acquiring high-resolution images.

Using T/m/s provides a clear understanding of both the strength (in Tesla) and the spatial variation (in meters) of the magnetic field over time (in seconds), making it the appropriate unit for expressing slew rates in the context of MRI technology.