Each digital image is formed by two-dimensional elements termed:

pixels

Highly complex mathematical formulas used in creating the digital image are termed:

Algorithms

True/False:

Changes in kV have little impact on patient dose with digital imaging.

False

True/False:

kV and mAs do not have the same direct effect on image quality with digital imaging as they do with IR screen imaging.

True

True/False:

A wide exposure latitude associated with digital imaging systems will reduce repeat exposures.

True

The intensity of light that represents the individual pixels in the image on the monitor is termed:

Brightness

The primary controlling factor of contrast in the digital film image is:

processing algorithms

The greater the bit depth of a digital system, the greater the:

contrast resolution

What term describes the minimum pixel size that can be displayed by a monitor?

Display pixel size

True/False:

OID and SID have little impact on spatial resolution of the digital image.

False

True/False:

The current range of spatial resolution for digital general radiographic imaging is between 2.5 to 5 lp/mm.

True

A numeric value that is representative of the exposure the image receptor received is termed:

Exposure Indicator

Random disturbance that obscures or reduces clarity is:

noise

True/False:

If an acceptable exposure indicator range is between 2.0 and 2.4, an exposure indicator of 4.0 would indicate overexposure.

True

True/False:

A high SNR results when insufficient mAs is used in creating a digital image.

False

Which of the following factors will result in an increase in noise?

excessive mAs

scatter radiation

high kV

decrease in pixel size

scatter radiation

Changing or enhancing the electronic image to improve its diagnostic quality describes:

post processing

__________ is the application of specific image processing that alters the pixel values across the image so as to present a more uniform image appearance.

Equalization

Window width controls the ________ of the digital image

contrast

True/False:

Post-processing can correct for a low SNR image.

False