Mamm Cht2

Question 1

What is the frequency of ACR accreditation?
A) every year
B) every two years
C) every three years
D) every five years

Answer 1

C) every three years

Question 2

The material used for the exit port of the mammography tube is necessary, because:
A) the intensity of the beam is less on the side than on the cathode side
B) regular glass would harden the emerging beam
C) the intensity of the beam is more on the side than on the cathode side
D) regular glass was softened the emerging beam

Answer 2

B) regular glass would harden the emerging beam

Question 3

The intensity of the x-ray beam from the cathode side of the tube is generally higher because:
A) soft, characteristic radiation, emerges from the anode side
B) the cat side is directed to the thickest part of the breast
C) the heel effect, causes variation in the intensity of the x-ray beam
D) the heel effect, increases the intensity of the beam at the anode side

Answer 3

C) the heel effect, causes variation in the intensity of the x-ray beam

Question 4

The design of the lip of the compression paddle (both height, and the angle along the chest wall) effects all the following except:
A) it prevents the posterior and auxiliary fat from overlapping the body of the breast
B) it allows uniform compression of the posterior breast tissue
C) it helps increasing the structural strength of the compression paddle
D) it ensures higher compression of the interior breast tissue

Answer 4

D) it ensures higher compression of the interior breast tissue

Question 5

The primary goal of compression is to:
A) reduce the object to image detector distance (OID) of the lesion:
B) allow uniform penetration of structures within the breast
C) reduce the possibility of motion during the exposure
D) reduce the radiation dose to the breast

Answer 5

B) allow uniform penetration of structures within the breast

Question 6

What features of the high transmission cellular (HTC) grid allows these grids to maintain equal or less radiation dose to the patient compared with linear grids?
A) these grids use lead as the strips and wood as interspace material
B) they have copper as the strips and air as the interspace material
C) they use aluminum as the strips and the air as the interspace material
D) they use wood as the strips and copper as the interspace material

Answer 6

B) they have copper as the strips and air as the interspace material

Question 7

In general, mammography units as the port window?

Answer 7

Beryllium

Question 8

The grade ratio can vary and modern mammography units. A common grade ratio used is.:
A) 8:1
B) 6:1
C) 5:1
D) 2:1

Answer 8

C) 5:1

Question 9

The chest wall edge of the compression paddle should be aligned just beyond the chest wall edge of the detector to:
A) avoid pushing the patient’s chest away and losing breast
B) properly position and compress the breast
C) permit uniform exposure and reduce patient discomfort
D) avoid projecting the chest edge of the paddle on the mammogram

Answer 9

D) Avoid projecting the chest wall of the paddle on the mammogram

Question 10

Which of the following affects focal spot size?
A) angle of the anode
B) a decrease in the source to image detector distance (SID)
C) decreasing the size of the collimated beam
D) changing the relationship between the object to image detector distance SID

Answer 10

A) angle of the anode

Question 11

Which of the following is the commonly used focus spot size for routine, work and mammography
A) 3mm
B) 0.3 mm
C) 1 mm
D) 0.1mm

Answer 11

B) 0.3 mm

Question 12

Which of the following mammography quality control test is performed as needed?
A) phantom image quality
B) visual checklist
C) repeat analysis
D) mammography, equipment evaluation (MEE)

Answer 12

C) repeat analysis

Question 13

How often is visual checklist performed?

Answer 13

Monthly

Question 14

How often is Phantom image performed?

Answer 14

Weekly

Question 15

The general criteria to pass the new American college of Radiology digital mammography (ACD DM) phantom require a minimum of ______ masses.
A) 2
B) 3
C) 4
D) 5

Answer 15

A) 2

Question 16

What is the compression thickness indicator test?
A) a check of the minimum and maximum compression force of automatic compression
B) a check of minimum and maximum compression force on manual compression
C) a check to ensure that the indicate compression thickness is within normal range
D) a check of the compression on the breast

Answer 16

C) a check to ensure that the indicate compression thickness is within normal range

Question 17

How often is the compression thickness indicator performed?

Answer 17

Monthly

Question 18

What is the name given to the test test to determine whether the unit has consistent detector signal to noise level for all breast thickness
A) KVP accuracy
B) visual checklist
C) acquisition, workstation (AWS) QC
D) AEC test

Answer 18

B) visual checklist

Question 19

A technologist test is performed semi annually is:
A) phantom image test
B) visual checklist
C) compression force test
D) repeat analysis

Answer 19

C) compression force test

Question 20

How often is the compression force test performed?

Answer 20

Semi annually

Question 21

What is the range of pounds should be used for a compression force test

Answer 21

25 pounds (111 N) to 45 pounds (200 N)

Question 22

Repeats are:
A) images taken during a breast stereolocalization
B) images used for QC
C) images that involve unnecessary exposure to the patient
D) all discarded images

Answer 22

C) images that involve unnecessary exposure to the patient

Question 23

To get a meaningful analysis, the repeat analysis needs a patient of at least _______ patients
A) 200
B) 150
C) 300
D) 250

Answer 23

D) 250

Question 24

Mammography facilities can receive certification from
A) ACR
B) FDA
3) states as certifiers (SACs)
A) 1 or 2
B) 2 or 3
C) 1 or 3
D) 1, 2 or 3

Answer 24

B) 2 or 3

Question 25

Aluminum filtration is likely to be matched with _______ targets
A) molybdenum
B) rhodium
C) tungsten
D) beryllium

Answer 25

C) tungsten

Question 26

Which of the following visual checklist test must be performed before clinical use?
A) paddles/face shields must not be cracked
B) indicators must be working correctly
C) C arm motion must be smooth
D) collimator light must be working

Answer 26

A) paddles/face shields must not be cracked

Question 27

What material is mostly used of the exit port?

Question 28

A single binary digit of data, such as “0” or “1” is called a
A) pixel
B) matrix
C) bit
D) byte

Answer 28

C) bit

Question 29

In general, higher magnification will require the use of a
A) larger local spot size
B) smaller OID
C) smaller focal spot size
D) larger SID

Answer 29

C) smaller focal spot size

Question 30

Why is an effective focal spot size used for magnification?

Answer 30

Used to compensate for the loss of image detail

Note: air gap acts like grid

Question 31

The air gap In magnification allows increase subject contrast by
A) increasing scatter
B) reducing scatter
C) reducing motion
D) increasing motion

Answer 31

B) reducing scatter

Question 32

A grid is not necessary during magnification because
A) grid use decreases spatial resolution
B) the small focal spot size used will compensate for the loss of image detail
C) the large OID produces the same effect as a grid
D) magnification will magnify the normally invisible grid line

Answer 32

C) the large OID produces the same effect as a grid

Question 33

The air gap in magnification allows increase subject contrast by
A) increasing scatter
B) reducing scatter
C) reducing motion
D) increasing

Answer 33

B) reducing scatter

Question 34

If the magnification mammography is performed without using a small focal spot size, the resulting image will be magnified
A) and blurred
B) and sharply outlined
C) with increased subject contrast
D) with increased detail

Answer 34

A) and blurred