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Chapter 1
Intro to imaging and radioscience
18
Science
Undergraduate 3
07/15/2014

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Term
radiation
Definition
energy that is transmitted by waves through space or through a medium (matter).
**note- this is a generalized term describing all energy that passes in waves... hmmmmm.
Term
energy
Definition
the capacity to operate or work
Term
ionization
Definition
any process by which a neutral atom gains or loses an electron, thus acquiring a net charge.
can disrupt life processes by altering charge.
this type of radiation is dangerous whereas sound waves (ultrasound) non ionizing radiation is not.
Term
diagnostic medical sonography
Definition
visualization of deep structures of the body by recording the reflections of pulses of ultrasonic waves directed into the tissue
Term
Magnetic Resonance Imaging (MRI)
Definition
process of using a magnetic field and radiofrequencies to create sectional images of the body
Term
mammography
Definition
radiography of the breast
Term
nuclear medicine technology
Definition
branch of radiology that involves the introduction of radioactive substances into the body for both diagnostic and therapeutic purposes
Term
radiation therapy
Definition
branch of radiology involved in the treatment of disease by means of x-rays or radioactive substances
Term
radiography
Definition
making of records (radiographs) of internal structures of the body by passing x-rays or gamma rays through the body to act on specially sensitized film or an imaging plate or system
Term
radiologic technologist
Definition
general term applied to an individual who performs radiography, radiation therapy, or nuclear medicine technology
Term
radiologist
Definition
physician who specializes in the use of roentgen rays and other forms of radiation in the diagnosis and treatment of disease
Term
radiologist assistant (RA)
Definition
an advanced-level radiography who extends the capacity of the radiologist in the diagnostic imaging environment, thereby enhancing patient care
Term
radiology
Definition
branch of the health sciences dealing with radioactive substances and radiant energy and with the diagnosis and treatment of disease by means of both ionizing and nonionizing radiation
Term
roentgen ray
Definition
synonym for x-ray
Term
x-ray
Definition
electromagnetic radiation of short wavelength that is produced when electrons moving at high velocity are suddenly stopped
Term
Bone densitometry(BD)
Definition
the measurement of bone density using dual-energy x-ray absorptiometry(DEXA or DXA) to detect osteoporosis
Term
Cardiovascular Interventional Technology(CVIT)
Definition
radiologic procedures for the diagnosis and treatment of diseases of the cardiovascular system
Term
Computed Tomography(CT)
Definition
recording of a predetermined plane in the body using an x-ray beam that is measured, recorded, and then processed by a computer for display on a monitor
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