Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 20
| Term | Definition |
|---|---|
| Radiology | Medical specialty concerned with the study of x-rays and other technologies (such as ultrasound and magnetic resonance) to produce and interpret images of the human body for diagnosis of disease |
| X-rays | Invisible waves of energy |
| Nuclear medicine | Use of radioactive substances in the diagnosis of disease |
| Computed tomography (CT) | Radiopaque materials are injected to obtain contrast with surrounding tissue when shown on x-ray film |
| Gamma camera | Machine to detect gamma rays emitted from radiopharmaceuticals |
| 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 or diagnostic procedures performed by a radiologist |
| In vitro | Process, test, or procedure preformed, measured, or observed outside a living organism |
| In vivo | Process, test, or procedure preformed, measured, or observed within a living organism |
| Ionization | Thransformation of electrically neutral substances into electrically charged particles |
| Magnetic resonance imaging (MRI) | Use of magnetic 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 image 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 |
| Radiopaque | 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 medicine test using radiopharmaceuticals |
| Single photon emission computed tomography (SPECT) | Radioactive tracer is injected intravenously and a computer constructs a 3D-image based on a composite |
| Tagging | Attaching a radionuclide to a chemical and following its path in the body |
| Tracer studies | Use of radionuclide tags attached 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 | Rate of absorption of a radionuclide into an organ or tissue |
| Ventilation-perfusion studies | Ventilation and perfusion of a radiopharmaceutical followed by imaging its passage through the respiratory tract |
Created by:
Morgang152
Popular Medical sets