WorksheetsTechnical Considerations Review
Total questions: 35
Worksheet time: 18mins
Which of the following parameters still apply to radiographic image formation in both CR and DR units?
SID
OID
kVp
All of the above
What does the term "remnant beam" refer to?
The initial x-ray beam
The beam that exposes the IR
The scattered x-ray beam
None of the above
Higher kVp values in digital imaging are beneficial due to:
Increased patient dose
Higher noise levels
Higher k-edge of the detector
Lower image quality
What is the main consequence of using too low mAs values?
Excessive noise
High contrast
Low patient dose
None of the above
Which of the following can lead to detector saturation?
Excessive mAs
Low kVp
High SID
None of the above
What is an Exposure Indicator # (EI#)?
A method to assess patient size
A numerical parameter for monitoring radiation exposure to the IR
A measure of image quality
None of the above
What is the primary goal of exposure technique systems?
To increase patient dose
To reduce image quality
To ensure consistent image quality
To increase noise levels
The fixed kVp system primarily adjusts mAs based on:
Patient weight
Patient age
Optimum kVp
None of the above
What is the recommended change in mAs for every 5 cm change in thickness?
10%
20%
30%
40%
In the variable kVp system, what is the base kVp typically set at?
50 kVp
60 kVp
30 kVp
70 kVp
According to the 15% rule, what happens when kVp is increased by 15%?
mAs is doubled
mAs is halved
mAs remains the same
None of the above
The process of establishing a technique system involves which of the following steps?
Creating a theoretical exposure chart
Analyzing repeated images
Fine-tuning based on clinical trials
All of the above
What does noise in an image primarily affect?
Patient safety
Diagnostic acuity
Image resolution
None of the above
What is the term for the gradual acceptance of using higher exposures in imaging?
Dose Creep
Image Creep
Exposure Creep
Radiation Creep
What are artifacts in medical imaging?
Useful information about the patient
Extraneous pieces of information not representing the patient
Indicators of optimal imaging
None of the above
The detective quantum efficiency (DQE) measures:
Cost-effectiveness of imaging
Sensitivity and accuracy of the image receptor
Radiation dose to the patient
None of the above
Which of the following can cause data drop artifacts?
Underexposure
Overexposure
Both A and B
None of the above
What is the purpose of electronic masking?
To enhance image contrast
To remove nonclinical data from the image
To increase exposure
None of the above
Electronic annotation is used to indicate:
Patient age
Image acquisition conditions
Device calibration
None of the above
Medical radiographs are considered what type of document?
Informal document
Legal document
Optional document
None of the above
What is photon starvation?
Excessive exposure to the detector
Inadequate exposure to the detector
When assessing DR image quality, which factor is NOT taken into account?
Image noise
Motion distortion
Patient comfort
Artifacts
What does the term "data drop" refer to?
Loss of image quality
Misrepresentation of patient information
The inability of the detector to recognize high-energy values
All of the above
Which system tends to produce more scatter and lower contrast?
Fixed mAs
Fixed kVp
Variable kVp
None of the above
The effect of kVp on image quality is primarily due to:
Contrast
Resolution
Scatter
All of the above
What is the purpose of collimation in radiographic imaging?
To increase exposure
To concentrate the x-ray beam on the area of interest
To reduce patient dose
Both B and C
What is the maximum recommended increase in mAs for increased body thickness?
10%
20%
30%
None of the above
Which of the following is NOT a factor affecting image quality?
Tissue composition
Patient anxiety
What is required to maintain exposure when decreasing kVp?
Increase mAs
Decrease mAs
Keep mAs the same
None of the above
What is the purpose of the Deviation Index (DI)?
To assess patient condition
To establish a range of EI# variances
To monitor device performance
None of the above
What is the result of excessive mAs?
Lower patient dose
Increased noise
Detector saturation
Both B and C
The 15% Rule applies to which of the following parameters?
mAs
kVp
SID
OID
What does the exposure technique chart assist with?
Determining patient height
Ensuring consistent imaging practices
Managing patient records
None of the above
Which of the following is a negative consequence of overexposure?
Increased image detail
Data drop
Improved contrast
None of the above
The target exposure index (EIT) values are used to ensure:
Consistent patient positioning
ALA compliance
