Technical Considerations in Digital Imaging

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