Radiology Vocabulary
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| cineradiography | use of motion picture techniques during fluoroscopy
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| computed tomography | CT / cross-section image of a specific body segment is produced
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| contrast studies | materials are injected to obtain contrast with surrounding tissue
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| fluorescence | emission of glowing light
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| fluoroscopy | x-rays produce flurescent image
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| gamma camera | machine to detect radiopharmaceuticals in body
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| gamma rays | high-energy rays emitted by radioactive ubstances
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| half-life | time required for a radioactive substance to lose half its radioactivity
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| interventional radiology | therapeutic procedures performed by a radiologist
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| in vitro | measured or observed outside a living organism
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| in vivo | measured or observed in a living organism
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| ionization | transformation of electrically neutral substances into electrically charged ones
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| labeled compound | radiopharmaceutical
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| magnetic resonance | MR / magnetic field to form sagittal, coronal, and axial images
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| nuclear medicine | medical specialty / studies uses of radioactive substances in diagnosis
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| positron emission tomography | PET / radioactive substances given IV and emit positrons
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| radioimmunoassay | test combines use of radioactive chemicals and antibodies to detect substances in blood
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| radioisotope | radioactive form of a substance
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| radiolucent | permitting the passage of most x-rays
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| radionuclide | radioactive chemical element
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| radiopaque | obstructing the passage of x-rays
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| radiopharmaceutical | radioactive drug / administered safely
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| roentgenology | study of x-rays
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| scan | term for images of organs, parts, or transverse sections
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| scintigraphy | two dimensional images after administration of radiopharmaceutical imaging agent
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| SPECT | single-photon emission computed tomography
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| tagging | attaching radionuclide to chemical and following thru body
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| tracer studies | radionuclides used as tags and followed thru body
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| ultrasound | high frequency sound waves echo off parts of body
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| uptake | rate of absorption of radionuclide into organ or tissue
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