Module 2 Flashcards
Mammography generators have excellent exposure linearity and reproducibility which allow for:
variable voltage waveforms
more accurate image comparisons over time
higher radiation doses
improved imaging of dense breast tissue
more accurate image comparisons over time
Mammography equipment generally is constructed with 2 filaments measuring ______ mm and _______ mm.
- 01; 0.1
- 03; 0.3
- 01; 0.03
- 1; 0.3
0.1; 0.3
To create a uniform thickness of tissue for mammographic imaging, the compression paddle must bow no more than ________ cm from parallel to the receptor in any direction.
0.1 cm
0.2 cm
1 cm
2 cm
1 cm
The grid ratio used in mammographic imaging is lower than grid ratios used in general radiographic imaging because of the lower ________ used in mammography.
tissue thickness
peak kilovolt (kVp) range
SID setting
filter thickness
peak kilovolt (kVp) range
Which of the following is not true regarding mammography magnification?
Magnification is performed using a radiolucent plastic stand attached to the receptor.
Magnification uses compression.
The area of interest is magnified 1.4 to 2 times normal size.
The Mammography Quality Standards Act (MQSA) requires that systems offer at least 2 magnification values within acceptable ranges.
The Mammography Quality Standards Act (MQSA) requires that systems offer at least 2 magnification values within acceptable ranges.
The full auto mode used in mammographic imagin can control all of the following except _________.
kVp
density setting
SID
filter material
SID
The scintillator in a charge-coupled device used in some digital mammography units converts x-rays to _______.
electrons
digital information
light
isotopes
light
With cassette-based digital mammography, the _______ represents the distance between the scanning laser beam positions during plate processing.
object-to-image distance
field of view
SID
sampling pitch
sampling pitch
