Sodium imaging delivers valuable information about metabolism and disease. The spin dynamics of sodium are significantly impacted by the environment of the nuclei, multiple quantum coherences might develop via the quadrupole interaction. This allows imaging with multi quantum filters (MQF) to achieve weightings towards different sodium compartments. MQF sodium signals are detected with three consecutive RF pulses, by placing a readout train between the first and second RF pulse, a fully quantitative characterisation of relaxation properties in a two-compartment model is possible from measurements within a single sequence.
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