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WorksheetsTechnical Considerations in Digital Imaging
Total questions: 10
Worksheet time: 5mins
Which of the following is not something that can present a problem with image quality?
Smoothing creases in a patient's gown
Skin keloids
Clothing artifacts
Tattoos
Which of the following is not a variable in creating a radiograph with an ideal exposure?
Geometric distances
Collimation size
Patient condition
X-ray tube angles
What is the first step in establishing an exposure technique system?
The use of a phantom to produce a series of test exposures
Testing the technique chart on patients using clinical trials
Clinical fine-tuning
Producing a theoretical exposure technique chart
Which system uses a rule that adjusts 2 kVp per cm of subject thickness?
Optimal kVp system
Flexible kVp system
Fixed kVp system
Variable kVp system
Which of the following artifacts is caused by inadequate exposure?
Quantum mottle
Light spots
A white line
Fogging from background radiation
How is the initial contrast that is received from the digital detectors described?
Extremely high
Similar to film-screen
Same as the final contrast
Extremely low
During which step of establishing an exposure chart is it important that every part be measured with a set of calipers?
Testing the technique chart on patients using clinical trials
The use of a phantom to product a series of test exposures
Producing a theoretical exposure technique chart
Clinical fine-tuning
Which of the following describes the faithful representation of the patient on a medical radiograph?
Diagnostic yield
Image accuracy
Image fidelity
Diagnostic efficacy
Which of the following may appear as a result of incomplete image plate erasure?
Scratches or tears
Phantom or ghost images
A white line
Light spots
Increased margin for error in overexposure and underexposure to the digital receptor is due to what?
Increased latitude
Exposure response
Direct flat-panel detector
Electronic masking
