A magnetic susceptibility phantom with a large range of negative to positive susceptibility values relative to water is demonstrated for validating quantitative susceptibility mapping (QSM) and related quantitative MRI techniques. The phantom consists of vials with various concentrations of paramagnetic Gadolinium contrast agent (Gd) and diamagnetic calcium chloride (CaCl2) solutions. Compared to previously reported phantoms, this phantom is easy to construct and highly stable and has minimal effects of unwanted air bubbles.
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