Figure 4.
Global fit error can be used to estimate the true temperature of the phantom in order to correct for temperature-dependent errors in PDFF quantification. Fit error as a function of modeled temperature is shown in temperature-controlled experiments using two different field strengths (1.5T and 3T) at three different phantom temperatures (approximately 10°C, 20°C, 40°C) using magnitude-based methods. Global temperature at minimum fit error, TG, and thermometer-measured phantom temperature, Tt are shown.