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contrast examination |
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contrast examination, the use of radiopaque materials to make internal organs visible on x-ray film. Because of their high atomic numbers, substances such as iodine and barium have an x-ray photoelectrical interaction that is nearly 400 times that of soft tissue. As a result, internal organs or cavities outlined by such substances are more visible. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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