Dichromography—a Method for in vivo Quantitative Analysis of Certain Elements

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Science  28 Nov 1958:
Vol. 128, Issue 3335, pp. 1346
DOI: 10.1126/science.128.3335.1346


The method is based on absorption measurements of monochromatic x-rays. The radiation dose given to the patient is low, and thus the method is nondestructive. The physiological content of iodine in the human thyroid can be determined, as well as the distribution in the body of small amounts of roentgenological contrast substances.