Cardiothoracic Imaging
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Radiographic density



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As Ionizing radiation passes through the body, it is differentially absorbed by tissues of greater thickness or high atomic mass (e.g. calcium). Different portions of the body tissues attenuate differing amounts of the incident radiation. The radiographic density is mainly the result of x-ray radiation scattering or loss of the incident radiant energy by ionization.

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December 18, 2004 (PL)
version b.003