RAD 101, Chapter 23. Mammography
The overall most common cause of death in women is:
a. breast cancer
b. lung cancer
c. ovarian cancer
d. auto accidents - answer Lung cancer
The mean glandular dose for a typical two-projection mammogram done using a
screen/IR is:
a. 100 mrad
b. 320 mrad
c. 400 mrad
d. 450 mrad - answer320 mrad
The most common material used for the target in mammography tubes is:
a. vanadium
b. rhodium
c. tungsten
d. molybdenum - answerMolybdenum
Which projections of the breast are routinely performed during screening
mammography?
1.) lateral
2.) craniocaudal
3.) mediolateral oblique
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer2 and 3
Which of the following is true regarding the radiographic examination of the breast?
1.) imaging the posterior breast tissue is critical
2.) use vigorous compression to produce a uniform breast thickness
3.) perform positioning of the breast consistently so that lesions can be accurately
localized
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1, 2, and 3
The pectoral muscle is seen on the craniocaudal projection of the breast in what
percentage of patients?
, a. 20%
b. 30%
c. 50%
d. 75% - answer30%
Which of the following is true regarding the craniocaudal image of the breast?
1.) the nipple should be in profile and at midline
2.) all of the medial breast tissue should be shown
3.) the marker should be positioned along the medial side
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1 and 2
For the craniocaudal projection of the breast, the IR holder should be raised to the level
of the:
a. nipple
b. axillary tail
c. pectoral muscle
d. inframammary fold - answerinframammary fold
What is the angle of the central ray for the mediolateral oblique projection of the breast?
a. 25 degrees
b. 45 degrees
c. 30 to 60 degrees, depending on the angle of the pectoral muscle
d. 45 to 50 degrees, depending on the angle of the pectoral muscle - answer30 to 60
degrees, depending on the angle of the pectoral muscle
Which of the following is true regarding the mediolateral oblique projection of the
breast?
1.) the central ray enters the superomedial aspect of the breast
2.) the marker is placed along the lower border of the breast
3.) the breast should not droop on the image
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1 and 3
Which of the following describes the placement of the IR holder for the mediolateral
oblique projection of the breast?
a. the superior border is level with the axilla
b. perpendicular to the pectoral muscle
c. parallel with the anterior aspect of the affected upper arm
d. parallel with the line drawn from the axilla to the xiphoid - answerthe superior border
is level with the axilla
The overall most common cause of death in women is:
a. breast cancer
b. lung cancer
c. ovarian cancer
d. auto accidents - answer Lung cancer
The mean glandular dose for a typical two-projection mammogram done using a
screen/IR is:
a. 100 mrad
b. 320 mrad
c. 400 mrad
d. 450 mrad - answer320 mrad
The most common material used for the target in mammography tubes is:
a. vanadium
b. rhodium
c. tungsten
d. molybdenum - answerMolybdenum
Which projections of the breast are routinely performed during screening
mammography?
1.) lateral
2.) craniocaudal
3.) mediolateral oblique
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer2 and 3
Which of the following is true regarding the radiographic examination of the breast?
1.) imaging the posterior breast tissue is critical
2.) use vigorous compression to produce a uniform breast thickness
3.) perform positioning of the breast consistently so that lesions can be accurately
localized
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1, 2, and 3
The pectoral muscle is seen on the craniocaudal projection of the breast in what
percentage of patients?
, a. 20%
b. 30%
c. 50%
d. 75% - answer30%
Which of the following is true regarding the craniocaudal image of the breast?
1.) the nipple should be in profile and at midline
2.) all of the medial breast tissue should be shown
3.) the marker should be positioned along the medial side
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1 and 2
For the craniocaudal projection of the breast, the IR holder should be raised to the level
of the:
a. nipple
b. axillary tail
c. pectoral muscle
d. inframammary fold - answerinframammary fold
What is the angle of the central ray for the mediolateral oblique projection of the breast?
a. 25 degrees
b. 45 degrees
c. 30 to 60 degrees, depending on the angle of the pectoral muscle
d. 45 to 50 degrees, depending on the angle of the pectoral muscle - answer30 to 60
degrees, depending on the angle of the pectoral muscle
Which of the following is true regarding the mediolateral oblique projection of the
breast?
1.) the central ray enters the superomedial aspect of the breast
2.) the marker is placed along the lower border of the breast
3.) the breast should not droop on the image
a. 1 and 2
b. 1 and 3
c. 2 and 3
d. 1, 2, and 3 - answer1 and 3
Which of the following describes the placement of the IR holder for the mediolateral
oblique projection of the breast?
a. the superior border is level with the axilla
b. perpendicular to the pectoral muscle
c. parallel with the anterior aspect of the affected upper arm
d. parallel with the line drawn from the axilla to the xiphoid - answerthe superior border
is level with the axilla
