A multiparametric breast phantom with an integrated MRI-“visible” liquid crystal (LC) thermometer for real-time monitoring of phantom temperature was evaluated at three imaging sites, on MRI scanners from different vendors. Short-duration MRI acquisitions were optimized for visualization of LC elements and implemented at the sites for temperature measurements before and after DWI acquisitions. MRI-measured temperature differences between different imaging experiments were reflected in different water ADC values, calculated from DWI, that were consistent with the relationship between ADC and temperature described in the literature.
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