Digital chapter 15 worksheet
which of the following is an advantage of flat panel detectors used in fluoroscopy
- Correct Answer ✔️✔️much lighter and more compact
produce a digital signal directly
less electronic noise
60 times larger operational dynamic range because they do not exhibit veiling
glare
(all)
a large fill factor refers to - Correct Answer ✔️✔️a large area of the pixel
being sensitive to xrays
which of the following has a rectangular field of view and a wider dynamic range -
Correct Answer ✔️✔️flat panel detector in place of image intensifier
flat panel detector fluoroscopy units operate at what mA - Correct Answer ✔️
✔️50-1200 mA
, what fluoroscopic feature allows the position of the collimator plates to be
viewed on the monitor without exposing the patient to radiation - Correct
Answer ✔️✔️last image hold
the ability to adjust the size of the field of view without exposing the patient to
radiation is known as - Correct Answer ✔️✔️virtual collimation
frame averaging is - Correct Answer ✔️✔️an operation that reduces overall
patient dose and an operation that reduces image noise by averaging multiple
image frames together
what feature automatically adjusts the tube current (mA), voltage (kvp) filtration
and pulse width to maintain radiation exposure to the flat panel detector -
Correct Answer ✔️✔️none of these
a fluoroscopic feature that automatically turns the xray beam on and off rapidly
during operations is known as - Correct Answer ✔️✔️pulsed fluoroscopy
_____ refers to how long each exposure lasts - Correct Answer ✔️✔️pulse
width
which of the following is an advantage of flat panel detectors used in fluoroscopy
- Correct Answer ✔️✔️much lighter and more compact
produce a digital signal directly
less electronic noise
60 times larger operational dynamic range because they do not exhibit veiling
glare
(all)
a large fill factor refers to - Correct Answer ✔️✔️a large area of the pixel
being sensitive to xrays
which of the following has a rectangular field of view and a wider dynamic range -
Correct Answer ✔️✔️flat panel detector in place of image intensifier
flat panel detector fluoroscopy units operate at what mA - Correct Answer ✔️
✔️50-1200 mA
, what fluoroscopic feature allows the position of the collimator plates to be
viewed on the monitor without exposing the patient to radiation - Correct
Answer ✔️✔️last image hold
the ability to adjust the size of the field of view without exposing the patient to
radiation is known as - Correct Answer ✔️✔️virtual collimation
frame averaging is - Correct Answer ✔️✔️an operation that reduces overall
patient dose and an operation that reduces image noise by averaging multiple
image frames together
what feature automatically adjusts the tube current (mA), voltage (kvp) filtration
and pulse width to maintain radiation exposure to the flat panel detector -
Correct Answer ✔️✔️none of these
a fluoroscopic feature that automatically turns the xray beam on and off rapidly
during operations is known as - Correct Answer ✔️✔️pulsed fluoroscopy
_____ refers to how long each exposure lasts - Correct Answer ✔️✔️pulse
width
