The RF power applicable with a RF Coil is limited by

 

For any pulse or pulse shape, the numerical relations to check the limits of RF pulses are given by:

 

The following figure shows an example of a RF coil that allows 500 W peak power, a maximum time of 5 ms during which the peak power may be applied and a 3 W continuous power. Up to 5 ms, the peak power can be applied. Continuously, 3 W can be applied and in between, the power is limited by the product of power and time (single pulse energy). The longer the pulse in that range, the lower the power allowed.

 

 

For each RF Coil, the power ratings are programmed within the coil and made available for ParaVision.

ParaVision 6 and higher supervises the applied RF peak power, the single pulse energy and the continuous power of one pulse. Mean power deposition created by several pulses within the repetition time is currently not supervised.