True or False?
Fluoroscopy uses a continuous beam of x-rays to create images of the movement of internal structures
that can be viewed on a monitor. - Correct Answer True
True or False?
Fluoroscopy allows imaging of anatomy in motion, or dynamic imaging. - Correct Answer True
True or False?
Releasing the pressure applied to the deadman switch will terminate the radiation exposure during
fluoroscopy. - Correct Answer True
True or False?
Image intensification is the process that the exits radiation from the anatomic area of interest interacts
with the input phosphor for conversion to visible light, which are converted to electrons by a
photocathode, then focused by electrostatic focusing lenses, and accelerated toward an anode to strike
the output phosphor. - Correct Answer True
True or False?
X-rays exiting the patient interact with the image intensifier to produce light photons which are then
converted to electrons and finally back to light energy. - Correct Answer True
True or False?
The output phosphor is coated with light-emitting crystals to absorb electrons and emit light. - Correct
Answer True
True or False?
The input phosphor absorbs x-rays and emits light. - Correct Answer True
True or False?
, The photocathode absorbs light and converts light to electrons. - Correct Answer True
True or False?
The input phosphor is considerably larger than the output phosphor. - Correct Answer True
True or False?
The image at the output phosphor is brighter in part because it is significantly smaller than the same
image at the input phosphor. - Correct Answer True
True or False?
The conversion factor, another descriptor of the overall ability of an image intensifier to create a
brighter image, is measured in cd/m2/mR/s. - Correct Answer True
True or False?
Brightness gain: minification gain x flux gain. - Correct Answer True
True or False?
The conversion factor is a newer term for brightness gain and is typically about 1% of the brightness gain
value. - Correct Answer True
True or False?
ABC, or automatic brightness control maintains the brightness and contrast of the fluoroscopic image
during the procedure. - Correct Answer True
True or False?
Magnification of the fluoroscopic image occurs when the electrostatic lenses have more voltage applied,
creating a more negative charge. - Correct Answer True
True or False?
The magnification factor during fluoroscopic is equal to the full size input phosphor divided by the
selected input phosphor. - Correct Answer True
Fluoroscopy uses a continuous beam of x-rays to create images of the movement of internal structures
that can be viewed on a monitor. - Correct Answer True
True or False?
Fluoroscopy allows imaging of anatomy in motion, or dynamic imaging. - Correct Answer True
True or False?
Releasing the pressure applied to the deadman switch will terminate the radiation exposure during
fluoroscopy. - Correct Answer True
True or False?
Image intensification is the process that the exits radiation from the anatomic area of interest interacts
with the input phosphor for conversion to visible light, which are converted to electrons by a
photocathode, then focused by electrostatic focusing lenses, and accelerated toward an anode to strike
the output phosphor. - Correct Answer True
True or False?
X-rays exiting the patient interact with the image intensifier to produce light photons which are then
converted to electrons and finally back to light energy. - Correct Answer True
True or False?
The output phosphor is coated with light-emitting crystals to absorb electrons and emit light. - Correct
Answer True
True or False?
The input phosphor absorbs x-rays and emits light. - Correct Answer True
True or False?
, The photocathode absorbs light and converts light to electrons. - Correct Answer True
True or False?
The input phosphor is considerably larger than the output phosphor. - Correct Answer True
True or False?
The image at the output phosphor is brighter in part because it is significantly smaller than the same
image at the input phosphor. - Correct Answer True
True or False?
The conversion factor, another descriptor of the overall ability of an image intensifier to create a
brighter image, is measured in cd/m2/mR/s. - Correct Answer True
True or False?
Brightness gain: minification gain x flux gain. - Correct Answer True
True or False?
The conversion factor is a newer term for brightness gain and is typically about 1% of the brightness gain
value. - Correct Answer True
True or False?
ABC, or automatic brightness control maintains the brightness and contrast of the fluoroscopic image
during the procedure. - Correct Answer True
True or False?
Magnification of the fluoroscopic image occurs when the electrostatic lenses have more voltage applied,
creating a more negative charge. - Correct Answer True
True or False?
The magnification factor during fluoroscopic is equal to the full size input phosphor divided by the
selected input phosphor. - Correct Answer True
