Deck 25: The Imaging Process

Question 1

If the image quality acceptance limits are narrow,

A)image repeat rates may be high.
B)the department would be a good candidate for students.
C)the radiography staff would not expect to need regular inservices.
D)patient dosages would be unaffected.

Answer 1

image repeat rates may be high.

Question 2

Which phase of the imaging process includes control of factors such as density, contrast, recorded detail, and distortion?

A)image display
B)image processing
C)image analysis
D)image acquisition

Answer 2

image analysis

Question 3

Visibility of detail quality factors include all of the following EXCEPT

A)radiographic image density.
B)x-ray tube focal spot size.
C)image contrast.
D)radiographic grids.

Answer 3

x-ray tube focal spot size.

Question 4

The acceptance limit curve is often skewed to the ____ side.

A)low-contrast
B)high-contrast
C)light
D)none of the above

Question 5

Factors that affect the shape of the acceptance limit curve of medical images include all of the following EXCEPT

A)equipment condition.
B)department quality standards.
C)department location.
D)positioning abilities of the radiographer.

Question 6

Geometric image quality factors include:
1)focal spot selection
2)SID
3)grid ratio
4)filtration thickness
5)OID
6)tube angulation
7)part thickness
8)receptor resolution

A)3, 4, 7, and 8 only
B)1, 2, 4, and 7 only
C)1, 2, 5, 6, 7, and 8 only
D)1, 2, 3, 4, and 7 only

Question 7

What process is used to create a hard copy of digital images?

A)laser
B)DICOM formatting
C)wet mounting
D)You can't create hard copies of digital images.

Question 8

After a radiograph of the hip in the translateral projection is completed, the final image is judged by one of the radiographers as marginally acceptable, as it might show the acetabular rim and femoral head.The logical correct action to take would be to

A)present the image to a visiting radiologist who is there for the day.
B)present the image to a radiologist known to be "popular" with technologists.
C)repeat the image to obtain better image quality.
D)send the image for interpretation but make a note of the image in the quality control file of images.

Question 9

A KUB is completed on an obese patient using AEC and 70kVp.The x-ray generator terminated early after hitting the preset backup mAs value.The final image reveals a low EI value.Effective image analysis could reveal that

A)the combination of AEC detectors was incorrect.
B)an increase of 2 kVp is necessary.
C)the backup mAs needs to be recalibrated.
D)an increase in grid ratio is all that is needed.

Question 10

Image quality is primarily the domain of the

A)x-ray service engineer.
B)administrator.
C)radiographer.
D)physicist.

Question 11

Which phase of the imaging process incorporates the concepts of spatial resolution, density and brightness, and contrast and dynamic range?

A)image analysis
B)image acquisition
C)image display
D)image processing

Question 12

Which of these activities would be inconsistent with the "scope of practice" of the radiographer?

A)suggesting methods to improve fluoroscopic image quality to a radiologist
B)helping an ER physician identify a pneumonia on a chest radiograph
C)obtaining additional patient information to add to an existing patient history that was taken by a nurse
D)repeating a suboptimal radiograph after determining the S# was too high

Question 13

After completing a chest radiograph on a female patient with large pendulous breasts, the final image demonstrates acceptable density and contrast but a loss of recorded detail in the lung bases.The professional radiographer would

A)repeat the chest radiograph in the anterio-posterior (AP) projection.
B)increase the SID to improve resolution.
C)increase the mAs and tell the patient to hold their breath deeper.
D)politely ask the patient to separate her breasts as she approaches the chest board and repeat the exam in the PA projection.

Question 14

Producing an acceptable radiograph requires consideration of

A)technical factor selection.
B)pathology.
C)image processing.
D)all of the above

Question 15

When many radiographic factors are acting upon one other, it is known as

A)a pyramid problem.
B)a professional problem.
C)procedural problem.
D)an ethical problem.

Question 16

After a radiograph of the lumbar spine (AP) is completed, the final image reveals a S# of 758.Your correct image analysis leads you to

A)increase the mAs by 10% and repeat the image.
B)increase the kVp by 4 kVp and repeat the image.
C)decrease the SID to 36" and repeat the image.
D)none of the above

Question 17

All of the following are related except one.Select the choice not related to the others.

A)image analysis
B)image acquisition
C)image transmission
D)image processing

Question 18

Upon analysis of a chest radiograph taken on a female patient, the radiographer notices that there is an uneven radiographic density over the lung bases.One lung base is significantly underexposed compared to the other.In an effort to determine the possible cause(s), a logical strategy to take would be to

A)inspect the AEC detectors and retake the image.
B)retake the image on expiration.
C)ask the patient if she has had a previous breast surgery.
D)make a note for the radiologist that you cannot explain the opacification, as the patient is asymptomatic.

Question 19

Which phase of the imaging process is unique to each imaging modality?

A)image analysis
B)image acquisition
C)image archiving
D)image display

Question 20

Generally speaking, the primary cause of increased patient radiation dose is

A)extended fluoroscopy.
B)higher grid ratios than necessary.
C)inadequate beam restriction.
D)repeat images.

Question 21

Match the following choices with the correct statement as they relate to the imaging process.
production of final image

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis

Question 22

Match the following choices with the correct statement as they relate to the imaging process.
assessing image quality in terms of density, contrast, detail, distortion

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis

Question 23

Match the following choices with the correct statement as they relate to the imaging process.
high image quality

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis

Question 24

Match the following choices with the correct statement as they relate to the imaging process.
agreed-upon image quality standards

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis

Question 25

Match the following choices with the correct statement as they relate to the imaging process.
first phase in the diagnostic process

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis

Question 26

Match the following choices with the correct statement as they relate to the imaging process.
combination of inter-related factors that compound the problem

A)narrowing the search
B)pyramid problem
C)image processing
D)wide acceptance limits
E)image acquisition
F)acceptable limits
G)narrow acceptance limits
H)image analysis