Mammo Flashcards
1
Q
How big is a focus?
A
<5 mm
2
Q
Obscured = __% of margin is visualized
A
<75%
3
Q
Focal spot size for mag mammo?
A
0.1 mm
4
Q
Focal spot size for normal mammo
A
0.3 mm
5
Q
Increasing distance between the object and the detector (while keeping source the same) does what
A
Magnifies
6
Q
Mag mammo requires a grid, T or F?
A
False. Air gap due to increasing distance between object and receptor reduces scatter, No need for a grid.
7
Q
Mag mammo vs normal mammo; Tube current and Exposure time?
A
Mag mammo has 1/4 tube current but longer exposure time
8
Q
Radial Scar assocated with what?
A
Tubular Carcinoma, ADH, LCIS
9
Q
Giant fibroadenoma measurements?
A
> 8cm
