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introduction to radiologic
technologies exam 2024
law of energy conversion - answer-energy cannot be created or destroyed, only
converted from one type of energy to another
by product of x-ray tube energy conversion - answer->99% heat
<1% x-radiation
2 primary advantages of digital imaging - answer-1. post-processing image
enhancement
2. images are stored on computer
what's a further advantage of the post-processing image enhancement of digital
imaging - answer-may alter density of contrast of image after patient has had
exam
what's a further advantage of digital images being able to be stored on a
computer? - answer-having the ability to transfer to multiple locations via
network, email, or cd/rom
what are the two components of the x-ray tube? - answer-anode & cathode
what is needed to create x-rays? - answer-1. source of electrons
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2. means to accelerate the electrons
3. means to bring electrons to a sudden stop
cathode has a filament which contains... - answer-a thermionic cloud of electrons
when the filament is heated and electrons are emitted - answer-thermionic
emission
an imaging plate is coated with - answer-photostimuable phosphor
once the photostimuable phosphor of an imaging plate is struck with x-rays it
becomes - answer-excited and remains so until processed
once the ip is placed in reader (processor) it is scanned with a laser and... -
answer-1. releases the energized phosphor
2. phosphor are converted to visible image by computer
3. viewed on hi-res monitor
when struck by x-ray phosphor crystals do what - answer-glow
1 x-ray photon= - answer-1000's light photons
photon - answer-value of electromagnetic radiation
purpose of an intensifying screen - answer-reduce patient exposure
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intensifying screen is coated with what emulsion on both sides - answer-gelatin,
silver compounds, protective coating
processed film = - answer-permanent record and legal document
spot film - answer-still photo from fluoro
computed tomography - answer-provides cross sectional views of the body
gantry - answer-x-ray tube and detectors on circular path in ct
mri - answer-exposed to a magnetic field and radio wave transmission
pet - answer-positron emission tomography
what is injected into circulatory system for pet scan? - answer-
radiopharmaceuticals
radiopharmaceuticals - answer-mimic the body's own components
pet scan is used to... - answer-check function of body organ or system
in nuclear medicine what are introduced? - answer-radioisotopes are introduced
introduction to radiologic
technologies exam 2024
law of energy conversion - answer-energy cannot be created or destroyed, only
converted from one type of energy to another
by product of x-ray tube energy conversion - answer->99% heat
<1% x-radiation
2 primary advantages of digital imaging - answer-1. post-processing image
enhancement
2. images are stored on computer
what's a further advantage of the post-processing image enhancement of digital
imaging - answer-may alter density of contrast of image after patient has had
exam
what's a further advantage of digital images being able to be stored on a
computer? - answer-having the ability to transfer to multiple locations via
network, email, or cd/rom
what are the two components of the x-ray tube? - answer-anode & cathode
what is needed to create x-rays? - answer-1. source of electrons
, Page 2 of 30
2. means to accelerate the electrons
3. means to bring electrons to a sudden stop
cathode has a filament which contains... - answer-a thermionic cloud of electrons
when the filament is heated and electrons are emitted - answer-thermionic
emission
an imaging plate is coated with - answer-photostimuable phosphor
once the photostimuable phosphor of an imaging plate is struck with x-rays it
becomes - answer-excited and remains so until processed
once the ip is placed in reader (processor) it is scanned with a laser and... -
answer-1. releases the energized phosphor
2. phosphor are converted to visible image by computer
3. viewed on hi-res monitor
when struck by x-ray phosphor crystals do what - answer-glow
1 x-ray photon= - answer-1000's light photons
photon - answer-value of electromagnetic radiation
purpose of an intensifying screen - answer-reduce patient exposure
, Page 3 of 30
intensifying screen is coated with what emulsion on both sides - answer-gelatin,
silver compounds, protective coating
processed film = - answer-permanent record and legal document
spot film - answer-still photo from fluoro
computed tomography - answer-provides cross sectional views of the body
gantry - answer-x-ray tube and detectors on circular path in ct
mri - answer-exposed to a magnetic field and radio wave transmission
pet - answer-positron emission tomography
what is injected into circulatory system for pet scan? - answer-
radiopharmaceuticals
radiopharmaceuticals - answer-mimic the body's own components
pet scan is used to... - answer-check function of body organ or system
in nuclear medicine what are introduced? - answer-radioisotopes are introduced
