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| Use of motion pictures techniques to record a series of x-ray images during fluoroscopy |
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| Diagnostic x-ray procedure whereby a cross-sectional image of a specific body segment is produced. Newer CT scanners can create 3D images as well |
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| Materials (contrast media) are injected to obtain contrast with surrounding tissue when shown on the x-ray film |
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| Emission of glowing light results from exposure to and absorption of radiation from x-rays |
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| X-ray technique that produces a fluorescent image on an image intensifier |
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| Machine to detect gamma rays emitted from radiopharmaceuticals during scanning for diagnostic purposes |
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| High-energy rays emitted by radioactive substances in tracer studies |
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| Time required for a radioactive substance to lose half it's radioactivity by disintegration |
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| Theraputic procedures performed by a radiologist |
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| Process, test, or procedure is proformed, measured, or observed outside a living organism |
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| Process, test, or procedure is performed, measured, or observed within a living organism |
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| Transformation of electrically neutral substances into electrically charged particles. X-rays cause ionization of particles within tissues |
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| Radiopharmaceutical; used in nuclear medicine substance |
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| MAGNETIC RESONANCE IMAGING (MRI) |
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| Magnetic field and radio waves produced sagittal, coronal, and axial images of the body |
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| Medical specialty that studies the uses of radioactive substances (radionuclides) in diagnosis of disease |
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| POSITRON EMISSION TOMOGRAPHY (PET) |
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| Positron-emitting radioactive substances given intravenously create a cross-sectional image of cellular metabolism based on local concentration of the radioactive susbstance. PET scans give information about organ function |
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| Test combines radioactive chemicals and antibodies to detect minute quantities of substances in a patients blood |
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| Radioactive form of an element substance; radionuclide |
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| 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 |
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| Permitting the passage of x-rays. Radiolucent structures appear black on x-ray film |
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| Radioactive form of an element that gives off energy in the form of radiation; radioisotope |
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| Obstructing the passage of x-rays. Radiopaque structures appear white on x-ray film |
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| Radioactive drug that is administered safely for diagnostic and theraputic purposes |
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| Study of x-rays; radiology |
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| Image of an area, organ, or tissue of the body obtained from ultrasound, radioactive tracer studies, CT, or MRI |
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| SINGLE POSITRON EMISSION COMPUTED TOMOGRAPHY (SPECT) |
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| Radioactive tracer is injected intravenously and a computer reconstructs a 3D image based on a composite of many views |
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| Attaching a radionuclide to a chemical and following its path in the body |
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| Radionuclides are used as tags, or labels, attached to chemicals and followed as they travel through the body |
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| Handheld device that sends and receives ultrasound signals |
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| ULTRASONOGRAPHY (US, U/S) |
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| Diagnostic technique that projects and retrieves high-frequency sound waves as they echo off parts of the body |
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| Rate of absorption of a radionuclide into an organ or tissue |
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| VENTILATION-PERFUSION STUDIES |
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| Radiopharmaceutical is inhaled and injected intravenously followed by imaging its passage through the respiratory tract |
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