Threonine manganese chelate is a widely used nutritional food addictive. In this pilot study, we investigated the feasibility of threonine manganese chelate as a gastrointestinal contrast agent for MRI in rat models. Our study found that threonine manganese chelate aqueous solution created dark lumen on T1w, T2w and DWI images on rat models without obvious side effect. Threonine manganese chelate might be a promising enteral contrast agent for MRI on animal models.
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