Podcast
Questions and Answers
How is the sharpness of an image typically measured?
How is the sharpness of an image typically measured?
- By asking the question 'can I see the bony trabeculae?'
- By determining if fine structures can be visualized (correct)
- By measuring the ability to resolve the smallest object in the image
- By analyzing the resolution of the imaging system
What is the limiting resolution of an imaging system expressed in?
What is the limiting resolution of an imaging system expressed in?
- Pixels per square millimeter (px/mm^2)
- Line pairs per centimeter (lp/cm)
- Line pairs per millimeter (lp mm^-1) (correct)
- Resolution units per inch (rpi)
How can sharpness be subjectively determined in an image?
How can sharpness be subjectively determined in an image?
- By counting the number of visible structures in the image
- By viewing and asking 'can I see the bony trabeculae?' (correct)
- By measuring the luminance values of the image
- By analyzing the pixel density of the image
Which factor does not affect the subjective determination of sharpness within an image?
Which factor does not affect the subjective determination of sharpness within an image?
In Computed Radiography (CR), how is the radiographic image captured?
In Computed Radiography (CR), how is the radiographic image captured?
What distinguishes Direct Digital Radiography (DDR) from Computed Radiography (CR)?
What distinguishes Direct Digital Radiography (DDR) from Computed Radiography (CR)?
Why should measurements for the size of any object never be taken from a monitor in radiography?
Why should measurements for the size of any object never be taken from a monitor in radiography?
How can the size of a body structure be accurately determined in radiography?
How can the size of a body structure be accurately determined in radiography?
What causes image distortion in radiography if not all parts of the image are magnified equally?
What causes image distortion in radiography if not all parts of the image are magnified equally?
How can distortion be minimized in radiography when imaging a thin, flat object?
How can distortion be minimized in radiography when imaging a thin, flat object?
What happens to image quality if the object and detector in radiography are not parallel?
What happens to image quality if the object and detector in radiography are not parallel?
What technique helps avoid image distortion when conducting radiography?
What technique helps avoid image distortion when conducting radiography?
What is the phenomenon known as where the emitted light intensity is proportional to the original X-ray intensity?
What is the phenomenon known as where the emitted light intensity is proportional to the original X-ray intensity?
Which technology is used in digital radiography that involves an X-ray scintillator bonded to a read-out array?
Which technology is used in digital radiography that involves an X-ray scintillator bonded to a read-out array?
What process is carried out to remove any remaining trapped electrons from a phosphor plate after image digitization?
What process is carried out to remove any remaining trapped electrons from a phosphor plate after image digitization?
Which immediate image display technology involves a flat panel with a scintillator and an amorphous silicon photodiode thin-film transistor array?
Which immediate image display technology involves a flat panel with a scintillator and an amorphous silicon photodiode thin-film transistor array?
Which detector technology can be constructed in the form of a flat panel?
Which detector technology can be constructed in the form of a flat panel?
After being erased with bright white light, what is the phosphor plate ready for?
After being erased with bright white light, what is the phosphor plate ready for?
