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Vocabulary
Advanced Medical Terminology Chapter 20 ROOM221
| Term | Definition |
|---|---|
| computed tomopgraphy (CT) | diagnostic x-ray procedure that produces a cross-sectional image of a specific body segment |
| contrast studies | radiopaque materials are injected to obtain contrast with surrounding tissue when shown on x-ray film |
| gamma camera | high-energy rays emitted by radioactive substances to lose half its radioactivity by disintegration |
| half-life | time required for a radioactive substance to lose half its radioactivity by disintegration |
| interventional radiology | therapeutic or diagnostic procedures performed by a radiologist |
| in vitro | process test or procedure performed, measured, or observed OUTSIDE of a living organism |
| in vivo | process test or procedure proformed, measures, or observed INSIDE of a living organism |
| ionization | transformation of electrically neutral substance into electrically charged particles |
| magnetic resonance imaging (MRI) | use of electronic field and radio waves to produce sagittal, coronal, and axial images of the body |
| nuclear medicine | medical specialty that studies uses of radioactive substances in diagnosis of disease |
| positron emission tomography (PET) | use of positron-emitting radioactive substances given intravenously to create a cross-sectional imagine of cellular metabolism |
| radioimmunoassay | test that combines radioactive chemicals and antibodies to detect minute quantities of substances in a patients blood |
| radioisotope | radioactive form of an element; radionuclide |
| radiolabeled compound | radiopharmaceutical; used in nuclear medicine studies |
| radiology | medical specialty concerned with the study of x-rays and their use in diagnosis of disease |
| radiolucent | permitting the passage of x-rays |
| radionuclide | radioactive form of an element; radioisotope |
| radioplaque | obstructing the passage of x-rays |
| radiopharmaceutical | radioactive drug used for diagnostic and therapeutic purposes |
| scan | image of an area, organ or tissue of the body obtained from ultrasound, radioactive tracer studies, CT, or MRI |
| scintigraphy | diagnostic nuclear medicine test using radiopharmaceuticals and gamma cameras to create images |
| 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 | use of radionuclide tags attahced to chemicals and followed as they travel through the body |
| ultrasonography (US, U/S) | diagnostic technique that projects and retrieves high-frequency sound waves as they echo off body parts |
| ultrasound transducer | handheld device that sends and receives ultrasound signals |
| uptake | ventilation and perfusion of a radiopharmaceutical followed by imaging its passage through the respiratory tract |
Created by:
MedStudent2018
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