John Stroud, Yu Hao, Tim S Read, Janusz H Hankiewicz, Pawel Bilski, Krzysztof Klodowski, Jared M Brown, Keegan Rogers, Josh Stoll, Robert E Camley, Zbigniew Celinski, Marek Przybylski
This study provides insight into the advantages and disadvantages of using ferrite particles embedded in agar gel phantoms as MRI temperature indicators for low-magnetic field scanners. We compare the temperature-dependent intensity of MR images at low-field (0.2 T) to those at high-field (3.0 T). Due to a shorter T1 relaxation time at low-fields, MRI scanners operating at 0.2 T can use shorter repetition times and achieve a significant T2 * weighting, resulting in strong temperature-dependent changes of MR image brightness in short acquisition times...
March 16, 2023: Magnetic Resonance Imaging