In Vivo Measurement of T2 Relaxation Times in Mouse Brain at 17.6 Tesla

Firat Kara¹, Fu Chen¹, Jrg Matysik¹, Alia Alia¹

Knowledge of T₂ relaxation times for mouse brain at ultra high field (17.6 T) can be important to optimize imaging parameters for optimum contrast to noise and higher sensitivity and to observe changes induced by various pathological conditions. In this work in vivo T₂ relaxation parameters for mouse brain have been measured at 17.6 T and compared with those measurements at 9.4 T. Phantom solutions were used to quantify and validate changes in T₂ relaxation time at different field strengths. A decrease in T₂ relaxation time was found in several regions of mouse brain at 17.6 T as compared with 9.4 T. Phantom results validated a decrease in T₂ relaxation time at higher field strengths.