FIG. 4.

Results from the in vivo experiments. a: Gradient echo image of the plane of interest, with red dot showing the location of data for the temperature time course (c). b: Temperature increase after 2 min calculated from the phase change between the last gradient echo image and an initial reference scan. c: Line plot of temperature versus time at the location of the red dot in (a) (every second value is plotted for clarity). A linear fit, from which the SAR at that location is calculated, is also shown. d: SAR distribution throughout the slice.