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CT
- (computed tomography) -
- uses a narrow beam of x-rays, which rotates in a full arc around the patient to image the body in cross-sectional
- slices.
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fluoroscopy
directs x-rays through the body to a fluorescent screen to view the motion of organs, such as digestive system.
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US
(ultrasonography) - employs high-frequency sound waves to produce images of internal structures of the body.
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MRI
(magnetic resonance imaging) - employs magnetic energy (without ionizing x-rays) to produce cross-sectional images.
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PET
(positron emission tomography) - is a type of nuclear scan that uses radiopharmaceuticals to diagnose disorders involving metabolic processes, such as brain tumors, epilepsy, stroke, Alzheimer disease, and pulmonary disorders.
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endoscope
is a specialized lightened instrument to view the interior of organs and cavities.
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anastomosis
surgically joins two ducts blood vessels, or bowel segments to allow flow from one to another.
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SPECT
(single-photon emission computed tomography) - is similar to PET, but employs a specialized gamma camera that detects emitted radiation to produce a three-dimensional image based on a composite of many views.
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tomography
produces a film representing a detailed cross section of tissue structure at a predetermined depth; three types include CT, PET, and SPECT.
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radiopharmaceutical
is a drug that contains a radioactive substance that travels to an area or specific organ to be scanned.
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endoscopy
is a procedure to enable visualization of the interior of organs and cavities with a lighted instrument.
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cauterize
is a procedure to burn abnormal tissue with electricity, freezing, heat, or chemicals.
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adhesion
is a band of scar tissue that binds anatomical surfaces that normally are separate from each other.
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radiography
is production of shadow images on photographic film.
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sepsis
is the body’s inflammatory response to infection, in which there is fever, elevated heart rate and respiratory rate, and low blood pressure.
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