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In other to achieve higher levels of X-ray attenuation than observed for biological tissue,elements of higher...

In other to achieve higher levels of X-ray attenuation than observed for biological tissue,elements of higher atomic number(Z) are incorporated into the contrast agent molecule. Lithium iodide (LiI) was among the first water-soluble imaging agents. Compare mass attenuation coefficients for soft tissues and for lithium iodide

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