Digital fluoroscopy Questions with 100% Correct
Answers
This type of fluoroscopy produces a shadowed image that is directly produced from a
transmitted x-ray beam
conventional fluoroscopy
this type of fluoroscopy is a digital x-ray imaging system that produced dynamic images
with an area x-ray beam
digital fluoroscopy
what is the difference between conventional fluoroscopy and digital fluoroscopy
the nature of the image and the manner that it is digitized
what are the advantage of digital fluoroscopy over conventional fluoroscopy?
speed of image acquisition and postprocessing that enhances image contrast
what does a 1024x1024 image matrix mean?
A 1000 line system
in digital fluoroscopy, what is spatial resolution determined by?
image matrix and size of Image intensifier
spatial resolution is determined by ___
pixel size
what is the DF pixel size formula
, pixel size = II size/matrix
what has been added to the digital fluoro system that is not in the conventional fluoro
system?
a computer, multiple monitors, and a more complex operating console
Digital fluoroscopy is operated in radiographic mode, what does that mean?
tube current is at hundreds of mA, rather than less than 5 mA like in conventional fluoro
what two things happen if the tube current is energized continuously?
thermal overload and increased patient dose
how are DF images obtained?
by pulse progressive fluoroscopy
what is pulse progressive fluoroscopy?
pulsing the x-ray beam
what is the DF image acquisition rate?
1per second -10 per second
what would happen if x-ray exposure lasted longer than 33ms?
increased patient dose
T/F: if a flat panel is the fluoroscopic image receptor instead of the II tube, x-ray exposure
time can be continuously varied for decreased patient dose
TRUE
Answers
This type of fluoroscopy produces a shadowed image that is directly produced from a
transmitted x-ray beam
conventional fluoroscopy
this type of fluoroscopy is a digital x-ray imaging system that produced dynamic images
with an area x-ray beam
digital fluoroscopy
what is the difference between conventional fluoroscopy and digital fluoroscopy
the nature of the image and the manner that it is digitized
what are the advantage of digital fluoroscopy over conventional fluoroscopy?
speed of image acquisition and postprocessing that enhances image contrast
what does a 1024x1024 image matrix mean?
A 1000 line system
in digital fluoroscopy, what is spatial resolution determined by?
image matrix and size of Image intensifier
spatial resolution is determined by ___
pixel size
what is the DF pixel size formula
, pixel size = II size/matrix
what has been added to the digital fluoro system that is not in the conventional fluoro
system?
a computer, multiple monitors, and a more complex operating console
Digital fluoroscopy is operated in radiographic mode, what does that mean?
tube current is at hundreds of mA, rather than less than 5 mA like in conventional fluoro
what two things happen if the tube current is energized continuously?
thermal overload and increased patient dose
how are DF images obtained?
by pulse progressive fluoroscopy
what is pulse progressive fluoroscopy?
pulsing the x-ray beam
what is the DF image acquisition rate?
1per second -10 per second
what would happen if x-ray exposure lasted longer than 33ms?
increased patient dose
T/F: if a flat panel is the fluoroscopic image receptor instead of the II tube, x-ray exposure
time can be continuously varied for decreased patient dose
TRUE
