Digital Imaging Radiology Chapter 15
Questions and Answers with Certified
Solutions
What is an exposure index in digital radiography?
✔✔ A numerical value indicating whether the image was properly exposed.
What is the role of phosphor screens in computed radiography?
✔✔ They capture and store X-ray energy, which is later converted into a digital image.
Why is redundancy important in digital imaging storage?
✔✔ It ensures backup copies of images to prevent data loss.
What is an artifact in digital radiography?
✔✔ An unwanted distortion or mark that appears in an image due to processing, equipment, or
patient movement.
What is pixel binning in digital imaging?
✔✔ A technique that combines multiple pixels to enhance sensitivity while reducing resolution.
1
, How does contrast enhancement improve digital images?
✔✔ It increases the difference between light and dark areas for better visualization of structures.
What is the role of noise reduction algorithms in digital radiology?
✔✔ They help remove image noise while preserving important details.
What is a reference exposure level in digital radiography?
✔✔ A predetermined exposure value used to ensure image consistency and proper radiation
dose.
What is dual-energy imaging in digital radiography?
✔✔ A technique that uses different energy levels to enhance tissue differentiation.
What is an unsharp masking filter in digital imaging?
✔✔ A processing tool that enhances edges and improves image sharpness.
How does exposure creep impact digital imaging?
2
Questions and Answers with Certified
Solutions
What is an exposure index in digital radiography?
✔✔ A numerical value indicating whether the image was properly exposed.
What is the role of phosphor screens in computed radiography?
✔✔ They capture and store X-ray energy, which is later converted into a digital image.
Why is redundancy important in digital imaging storage?
✔✔ It ensures backup copies of images to prevent data loss.
What is an artifact in digital radiography?
✔✔ An unwanted distortion or mark that appears in an image due to processing, equipment, or
patient movement.
What is pixel binning in digital imaging?
✔✔ A technique that combines multiple pixels to enhance sensitivity while reducing resolution.
1
, How does contrast enhancement improve digital images?
✔✔ It increases the difference between light and dark areas for better visualization of structures.
What is the role of noise reduction algorithms in digital radiology?
✔✔ They help remove image noise while preserving important details.
What is a reference exposure level in digital radiography?
✔✔ A predetermined exposure value used to ensure image consistency and proper radiation
dose.
What is dual-energy imaging in digital radiography?
✔✔ A technique that uses different energy levels to enhance tissue differentiation.
What is an unsharp masking filter in digital imaging?
✔✔ A processing tool that enhances edges and improves image sharpness.
How does exposure creep impact digital imaging?
2
