It is essential to know the temperature distribution in the system, especially the particles, in order to calculate the lethal treatment delivered to potentially harmful microorganisms during the ohmic heating process. In this study, both hardware and software will be developed for rapid and reliable temperature mapping. An ohmic heating device was constructed so that it could be incorporated into the MRI machine without causing magnetic field interference. Temperature maps of carrot, potato, and beef cubes were successfully obtained. The data acquisition time for a single temperature map is about 15 seconds.
More work is under way to further improve the accuracy and speed of the technique.
Real-time MRI temperature maps of ohmically heated beef cubes. 1997 Regents of the University of Minnesota. All Rights Reserved. The University of Minnesota is an equal opportunity educator and employer.