Visualizing Structures aka imaging Techniques M2 Flashcards
Scan
Technique for carefully studying an area, organ or system by recording and displaying multiple images of the area.
Ultrasonography (US)
Imaging technique that uses high-frequency sound wave, ultrasound, that bounces off body tissues and are recorded to produce an image of an organ or tissue.
Radiography
Production of captured shadow image on photographic film through the action of ionizing radiation passing through the body from an external source.
Fluoroscopy
Radiographic procedure that uses a fluorescent screen instead of a photographic plate.
Radiopharmaceutical
Drug that contains a radioactive substance that travels to an area or a specific organ that will be scanned
Nuclear Scan
Diagnostic technique that produces an image by recording the concentration of a radiopharmaceutical called a radionuclide which is detected by a scanning device.
Tomography
Any technique that produces a film representing a detailed cross section of tissue structure at a predetermined depth.
Computed Tomography (CT)
Radiographic technique that uses a narrow beam of x-rays, rotating in a full arc around the patient to image the body in cross sectional slices.
Magnetic Resonance Imaging (MRI)
Radiographic techniques that use electromagnetic energy to produce cross-sectional images of the body at many planes.
Positron Emission Tomography (PET)
Radiographic technique which combines computed tomography and the use of radiopharmaceuticals (radioactively labeled drugs). Good for disorders like stroke, epilepsy and alzheimer’s.
Single-Photon Emission Computed Tomography (SPECT)
Type of nuclear imaging study to scan organs after an injection of a radioactive tracer. Like PET scan but typically produces 3D images.
Endoscopy
visual examination of interior of organs using a specialized lighted instrument called an endoscope.