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Radiology/Nucl Med

Chabner, Language of Medicine 8th Edition, Chpt 20 Vocabulary

QuestionAnswer
cineradiography use of motion picture techniques to record a series of x-ray images during fluoroscopy
computed tomography (CT) diagnostic x-ray procedure whereby a cross-sectional image of a specific body segment body segment is produced
contrast studies materials (contrast media) are injected to obtain contrast with surrounding tissue when shown on the x-ray film
fluorescence emission of glowing light results from exposure to and absorption of radiation from x-rays
fluoroscopy x-ray technique that produces a fluorescent image on an image intensifier
gamma camera machine to detect gamma rays emitted from radiopharmaceuticals during scanning for diagnostic purposes
gamma rays high-energy rays emitted by radioactive substances in tracer studies
half-life time required for a radioactive substance to lose half its radioactivity by disintegration
interventional radiology therapeutic procedures performed by a radiologist
in vitro process, test, or procedure is performed, measured, or observed outside a living organism
in vivo process, test, or procedure is performed, measured, or observed within a living organism
ionization transformation of electrically neutral substances into electrically charged particles
labeled compound radiopharmaceutical; used in nuclear medicine studies
magnetic resonance imaging (MRI) magnetic field and radio waves produce sagittal, coronal, and axial images of the body
nuclear medicine medical specialty that studies the ises of radioactive substances (radionuclides) in diagnosis of disease
positron emission tomography (PET) positron-emitting radioactive substances given intravenously create a cross-sectional image of cellular metabolism based on local concentration of the radioactive substance; give information about organ function
radioimmunoassay test combines radioactive chemicals and antibodies to detect minute quantities of substances in a patient's blood
radioisotope radioactive form of an element substance; radionuclide
radiology medical specialty concerned with the study of x-rays and their use in the diagnosis of disease; includes other forms of energy, such as ultrasound and magnetic waves
radiolucent permitting thhe passage of x-rays. structures appear black on x-ray film
radionuclide radioactive form of an element that gives off energy in the form of radiation; radioisotope
radiopaque obstructing the passage of x-rays. structures appear white on the x-ray film
radiopharmaceutical radioactive drug (radionuclide plus chemical) that is administered safely for diagnostic and therapeutic purposes
roentgenology study of x-rays; radiology
scan image of an area, organ or tissue in the body obtained from ultrasound, radioactive tracer studies, CT, or MRI
single photon emission computed tomography (SPECT) radioactive tracer is injected intravenously and a computer reconstructs a 3D image based on a composite of many views
tagging attaching a radionuclide to a chemical and following its path in the body
tracer studies radionuclides are used as tags, or labels, attached to chemicals and followed as they travel through the body
transducer handheld device that sends and receives ultrasound signals
ultrasonography (US, U/S) diagnostic technique that projects and retrieves high-frequency sound waves as they echo off parts of the body
uptake rate of absorption of a radionuclide into an organ or tissue
ventilation-perfusion studies radiopharmaceutical is inhaled (ventilation) and injected intravenously (perfusion) followed by imaging its passage through the respiratory tract
Created by: megaly ryan
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