Terms for Radiology
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| barium | a soft, silvery-white metallic element used in x-raying the digestive system and in making fireworks and white pigments
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| DEXA scan | a type of bone density test (dual-energy x-ray absorptiometry) using two (dual) x-ray beams with different energy levels to create a two-dimensional image
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| Doppler ultrasonography | ultrasonography applying the Doppler effect, in which frequency-shifted ultrasound reflections produced by moving targets in the bloodstream, usually red blood cells, are used to determine the direction and velocity of blood flow.
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| duplex | a molecule having two complementary polynucleotide strands of DNA or of DNA and RNA
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| enema | the introduction of liquid into the rectum to evacuate the bowels, medicate, or nourish
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| gadolinium | a metallic element that responds to a magnetic field and can be injected intravenously during magnetic resonance angiography
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| gallium | a soft, silvery metal used as an IV drug to detect inflammation, infection, and benign and cancerous tumors
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| indium | a soft, silvery metal used as an IV drug to look for cancerous tumors
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| iodine | a purple-black, shiny crystalline trace element in soil used as an IV drug to image the thyroid gland
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| krypton | a colorless, odorless gas used to image the lung when inhaled, also used in lasers for surgery
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| OncoScint | a nuclear medicine procedure used to detect areas of increased activity that are metastases from a cancerous tumor’s primary site in the colon or ovary
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| positron | a positively charged particle that has the same mass as an electron, but the opposite charge
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| ProstaScint | a nuclear medicine procedure used to detect areas of increased activity for metastases from prostate cancer
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| radiopaque | being opaque to radiation and especially X-rays
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| SPECT | a scan of the heart with a moving gamma camera which creates images as “slices”
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| technetium | a silvery gray metal used as an IV drug in nuclear imaging and to image various areas of the body
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| thallium | a gray metallic metal used as an IV drug to image the heart
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| xenon | a colorless, odorless gas used to image the lungs when inhaled
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| x-ray | a form of invisible ionizing radiation
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