MEDRAD QUIZ 4 MAMMO

Question 1

What target is best for dense breast tissue and why?

Answer 1

Rhodium, because it’s a higher atomic number, so able to penetrate the dense tissue better and provide clear image

Question 2

SID for mammography?

Answer 2

60-80cm

Question 3

What window glass is used?

Answer 3

beryllium window

Question 4

Does mammography use high or low atomic number materials?

Answer 4

low

Question 5

High or low kvp with mammography?

Answer 5

low kvp

Question 6

What target material is used in mammography? (other than dense tissue)

Answer 6

molybdenum

Question 7

Beam energy

Answer 7

17-24 kev

Question 8

Molybdenum k-shell BE

Answer 8

20 kev

Question 9

How often is mammography screening? ages?

Answer 9

every 2 years ages 40-74

Question 10

Breast cancer is the

Answer 10

most common cancer amongst women

Question 11

List breast cancer risk factors

Answer 11

age (older), family history, genetics, early mensuration, menopause after 55, no children or having children late, prolonged estrogen use, rad therapy at young age, more dense breast, more education, more socio-economic

Question 12

Explain digital tomosybthensis

Answer 12

tube moves during exam, takes many images at a time, can see different “slices”

Question 13

Pros of digital tomosybthesis

Answer 13

decreases movement during exam, increased contrast resolution

Question 14

Con of digital tomosynthesis

Answer 14

Increased patient dose