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Magnetic resonance (MR) transverse relaxation time (T2) mapping has frequently been used to evaluate collagen content and its organization. In this study, T2 mapping, using novel three-dimensional-triple-echo-steady-state technique was performed in volunteers in-vivo at 7 Tesla under the static load applied by MR compatible compression device. We observed that load of 250 N applied for 12 minutes...
The goal of this work was to analyze the clinical and technical usability of recently introduced steady state free precession T2 mapping technique. The TESS-T2 values were compared to conventionally used multi-echo spin-echo sequence (usually referred to as CPMG). The results showed that although T2 values determined by TESS are lower than those of CPMG, they are highly correlated between two methods...
We investigate anisotropic XXZ Heisenberg spin-1 / 2 chains with control fields acting on one of the end spins, with the aim of exploring local quantum control in arrays of interacting qubits. In this work, which uses a recent Lie-algebraic result on the local controllability of spin chains with “always-on” interactions, we determine piecewise-constant control pulses corresponding to optimal fidelities...
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