Deck 38: Mammography

Question 1

To engage the small focal spot in a dedicated mammography tube, ____ focusing must be used.

A)convex
B)dual
C)biased
D)concave

Answer 1

biased

Question 2

In mammography, the kVp commonly used in clinical practice varies between ____ kVp.

A)25 and 28
B)30 and 34
C)35 and 40
D)55 and 60

Answer 2

25 and 28

Question 3

Which organization offers a voluntary accreditation program for mammography?

A)JRCERT
B)ACR
C)NRC
D)ASRT

Answer 3

ACR

Question 4

Breast tissue is made up of

A)fatty tissue.
B)glandular tissue.
C)fibrous tissue.
D)all of the above

Question 5

The majority of mammography machines utilize a ____ inch SID.

A)24 to 30
B)30 to 36
C)36 to 40
D)60 to 72

Question 6

The disadvantage to using low kVp in mammography is its ability to produce

A)a very low-energy x-ray beam.
B)high radiographic contrast.
C)a soft x-ray beam.
D)an increased patient dose.

Question 7

The anode material of choice for a mammography machine is

A)lead.
B)tungsten.
C)molybdenum.
D)none of the above

Question 8

Dedicated mammography machines use ____ generators.

A)falling-load
B)single-phase, high frequency
C)capacitor discharge
D)three-phase

Question 9

The port of the x-ray tube in mammography is composed of

A)barium.
B)rhodium.
C)molybdenum.
D)beryllium.

Question 10

Approximately 40% of cancers in the breast contain microcalcifications that have an atomic number of

A)2
B)20
C)50
D)100

Question 11

The advantage to using low kVp in mammography is its ability to produce

A)a very low-energy x-ray beam.
B)high radiographic contrast.
C)a soft x-ray beam.
D)all of the above

Question 12

A disadvantage of using molybdenum for the anode material in mammography tubes is

A)less x-ray photon output.
B)increased mAs required to maintain film density.
C)increased patient dose.
D)all of the above

Question 13

The AEC system on most mammography machines utilizes ____ radiation-sensitive detector(s) located ____ the cassette.

A)a single; in front of
B)three; in front of
C)a single; behind
D)three; behind

Question 14

The type of generators used in dedicated mammography machines allows very precise control of

A)kVp.
B)mA.
C)time.
D)all of the above

Question 15

When the backup time is reached during a breast exposure, the radiographer should select a ____ setting for the repeat radiograph.

A)lower mAs
B)higher mAs
C)higher kVp
D)lower kVp

Question 16

Presently, the only radiography examination fully regulated by the federal government is

A)angiography.
B)fluoroscopy.
C)mammography.
D)CT scanning.

Question 17

The prominent heel effect in mammography is the result of a

A)narrow target angle.
B)wide target angle.
C)larger cathode.
D)smaller cathode.

Question 18

The prominent heel effect in mammography is due to a

A)short SID.
B)short OID.
C)long SOD.
D)long OID.

Question 19

Magnification projections of the breast provide

A)increased resolution.
B)a reduction in scatter radiation.
C)improved visibility of detail.
D)all of the above

Question 20

The advantage of using molybdenum for the anode material in mammography tubes is

A)a decreased number of low-energy photons.
B)low radiographic contrast.
C)production of specific x-ray energies.
D)none of the above

Question 21

Match the following items with the correct statement as each relates to mammographic imaging.
25-28

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 22

Mammography grids are

A)linear.
B)moving.
C)very low ratio.
D)all of the above

Question 23

Match the following items with the correct statement as each relates to mammographic imaging.
preferred filter material

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 24

Match the following items with the correct statement as each relates to mammographic imaging.
digital tomosynthesis

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 25

Match the following items with the correct statement as each relates to mammographic imaging.
24-30 inches

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 26

Breast compression

A)provides a more uniform film density.
B)improves visualization.
C)reduces magnification.
D)all of the above

Question 27

Digital tomosynthesis in mammography

A)uses a 40-degree rotation angle.
B)acquires ten images of the breast per sweep.
C)uses digital detector technology.
D)all of the above

Question 28

Match the following items with the correct statement as each relates to mammographic imaging.
preferred energy range of x-ray photons

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 29

The inherent low subject contrast of breast tissue requires that we attempt to optimize

A)the photoelectric effect.
B)the use of high ratio grids.
C)the Compton effect.
D)aluminum filtration.

Question 30

The use of a grid in mammography

A)improves radiographic quality.
B)increases patient exposure.
C)reduces scatter reaching the film.
D)all of the above

Question 31

Match the following items with the correct statement as each relates to mammographic imaging.
Xerox

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 32

Breast compression

A)reduces magnification.
B)increases tissue thickness.
C)increases radiation exposure.
D)increases motion unsharpness.

Question 33

Mammography x-ray tubes

A)are tilted to place the central ray at chest wall.
B)use stationary anodes for better resolution.
C)have higher heat capacity than radiographic tubes.
D)have a 0.6 mm large focal spot.

Question 34

Match the following items with the correct statement as each relates to mammographic imaging.
recommended for dense breasts

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 35

Match the following items with the correct statement as each relates to mammographic imaging.
introduced the first dedicated mammography system

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 36

To cover a 24x30 cm receptor in mammography, the mammography x-ray tube

A)uses molybdenum as the anode material.
B)possesses a beryllium filter.
C)has an effective target angle of 22 to 24 degrees.
D)adjusts field size with compression.

Question 37

Breast compression is applied at ____ pounds of force.

A)1 to 5
B)5 to 20
C)25 to 45
D)50 to 60

Question 38

Match the following items with the correct statement as each relates to mammographic imaging.
optimizes mammography services nationwide

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 39

Match the following items with the correct statement as each relates to mammographic imaging.
uses a 0.1 mm focal spot

A)beryllium
B)tungsten
C)optimum kVp range
D)magnification imaging
E)microcalcifications
F)molybdenum
G)17-20 kev
H)Companie Generale de Radiographique
I)mammography SID
J)developed a dry process for mammography
K)rhodium
L)MQSA
M)NEXT
N)expected to become the mammography “gold standard”

Question 40

One of the principal advantages of digital mammography is

A)the capacity to manipulate the image's contrast and density.
B)the capacity to transmit images for consultation, teaching, etc.
C)archiving (PACS) for simplified storage and ready access of images.
D)all of the above