Who's Responsible?!?
Who is responsible for supervising quality assurance?
How often should the mammographer perform the quality control test for screen-film contact?
Semiannually
In what type of tissue does 80 percent of breast cancer occur?
Ductal
________ has the advantage of lowering superimpositions, patient dose, and motion blur.
Breast compression
A dedicated mammography unit should have an automatic adjustable ________ device.
Compression
This is the person responsible to track patient communications and for choosing the medical physicist and mammographers for quality control.
The radiologist.
Before what age is it recommended that women obtain their first baseline mammogram?
40
Screening mammography requires _____ view(s) of each breast, whereas diagnostic mammography requires ______ or more views.
2, 2
Contrast resolution and spatial resolution increases with ________.
Breast compression
Every daily sensitometry strip should be fed into the processor how?
Emulsion side down
On the same edge of the feed tray
with the least exposed end first
This person is responsible for annual artifact evaluation.
The Medical Physicist
When is the QC evaluation of the equipment performed?
When repairs are needed and once a year
Once control values are set, the daily speed index (mid density) and contrast index (density difference) should not vary more than ______ from the control.
0.15
Every dedicated mammography unit is equipped with a _________.
Low ratio grid
The screen-film mammography quality control program is outlined by who?
Mammography Quality Standards Act
Who in the team is responsible for mammography quality control?
The mammographer, radiologist and the medical physicist.
At what age does the American Cancer Society recommend that ALL women have an annual screening mammogram?
50 and above
The sensitometry strip step with the optical density closes to, but not less than, _______ is the speed index (mid density) step.
1.2
What type of film does mammography currently use?
Single-emulsion
Soft tissue radiography requires special techniques because of the low ________.
Subject contrast
This person is responsible for testing average glandular dose to mammography patients annually.
The medical physicist
At what ages does the American Cancer Society recommend biannual screening mammograms for ALL women?
Ages 40-49
A diagnostic mammogram must be able to demonstrate microcalcifications less than _____ in size.
500 um
Why is a target of molybdenum or rhodium preferable in mammography?
It reduces scatter
The spatial resolution is improved in mammography by always placing the emulsion side of the film (against or away from) the screen and (away from or toward) the tube.
against, away from