Chapter 20 vocab Flashcards
contrast studies
radiopaque material thats injected to obtain contrast with surrounding tissue
gamma camera
machine to detect gamma rays emitted from radiopharmaceuticals during scanning for diagnostic purposes
gamma rays
high energy rays emitted by radioactive substances in tracer studies
half-life
time it takes for for a radioactive substance to lose half its radioactivy by discentigration
intervention radiology
therapeutic or diagnostic procedures performed by a radiologist
in vitro
process, test or procedure that is performed measured or observed outside of a living organism
in vivo
process test or procedure that is performed within a living organism
ionization
transformation of electrically neutral substances into electrically charged particles
magnetic resonance imaging
magnetic filed and radio waves produce sagittal, cornal and axial images of the body
nuclear medicine
medical speciality that uses radioactive substances in the diaggnosi of disease
positron emission tomography
positron emitting radioactive substances given intravenously to create a cross sectional image of cellular metabolism based on local concentrations of radioactive substance
radioimmunology
test combining radioactive chemicals and antibodies to detect minute quantiles of substances in patients blood
radioisotope
radioactive form of an element substance
radiolabeled compound
radiopharmaceutical; used in nuclear medicine studies
radiology
medical speciality concerned with the study of x-rays and their use in the diagnosis of disease
radiolucent
permitting the passage of x-ray
appear black on x-ray images
radionuclide
radioactive form of an element that gives off energy in the form o radiation
radiopaque
obstructing the passage of x-rays
appear white on x-ray images
radiopharmaceutical
radioactive drug that is administered safely for diagnosis and therapeutic purposes
scan
image of a area, organ or tissue of the body obtained from US, CT, MRI, radioactive tracer studies
scintigrahy
diagnostic nuclear medicine test using radiopharmaceuticals and gamma camera to create images
single photon emission computed tomography
radioactive tracer is injected intravenously and a computer re constructs a 3D image based on a composition of many views
tagging
attatching a radionuclide to a chemical and following it path in the body
tracer studies
radionuclide are used as tags or labels, attached to chemicals and follows as they travel through the body
ultrasnography
diagnostic technique that projects and retrieves high frequency sound wave as they echo off parts of the body
ultrasound transducer
handheld device that sends and receive ultrasound signals
uptake
rate of absorption of a radionuclide into an organ or tissue
ventilation-perfusuion studies
radiopharmaceutical in inhaled and injected intravenously followe by imaging its passage through the respiratory tract
is/o
same
pharmaceut/o
drug
radi/o
x-ray
son/o
sound
therapeut/o
treatment
vitr/o
glass
viv/o
life
flur/o
luminous
roentgen/o
x-ray
-gram
record
-graphy
process of recording
-lucent
to shine
-opaque
obscure
echo-
a repeated sound
ultra-
beyond
cine-
movement
computed tomography
diagnostic x ray procedure where cross sectional image of a body segment is created
abduction
movement away from the midline of the body
adduction
movement towards he midline of the body
eversion
turning outward
extention
straightening of flexed limb
flexion
bending a part of the body
inversion
turning inwards
lateral decubitus
lying down on the side - xray beam positioned horizontally
prone
lying on the belly
recumbent
lying down, either prone or supine
supine
lying face up
