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Delta Relaxation Enhanced Magnetic Resonance - Development And Application Of A Field-Cycling Contrast Mechanism, Yonathan Araya
Delta Relaxation Enhanced Magnetic Resonance - Development And Application Of A Field-Cycling Contrast Mechanism, Yonathan Araya
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Delta relaxation enhanced magnetic resonance (dreMR) is a novel imaging method capable of producing contrast proportional only to the concentration of the bound form of the targetable contrast agent using a dynamic field-cycling technique. The characteristic high relaxivity magnetic field dependence of bound paramagnetic contrast agents enables suppression of tissue contrast from unbound agents and unenhanced tissue, thereby increasing probe specificity. The dreMR technique requires an auxiliary actively shielded field-shifting insert electromagnet to modulate the strength of the main clinical magnetic field as a function of time during the relaxation and evolution periods of a pulse sequence.
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