Final answer:
The combination of gradient amplitude and rise time in magnetic resonance imaging (MRI) is referred to as the slew rate. It is measured in mT/m/s.
Step-by-step explanation:
In the context of magnetic resonance imaging (MRI), the combination of gradient amplitude and rise time is referred to as the slew rate. Slew rate is measured in mT/m/s, which stands for milliTesla per meter per second.
The slew rate is an important parameter in MRI because it determines how quickly the magnetic field gradients can be switched, which affects the image quality and acquisition time of an MRI scan.