RAD 217 Final Comprehensive Review

Long-term storage for digital documents and image data.

• Archive

• Warehouse

• RAM

• BIOS

Imaging plates used in CR are comprised of:

• barium fluorohalide w/ europium

• cesium iodide w/ calcium

• gadolinium oxysulfide w/ iodine

• amorphous selenium w/ bromine

Standardized format that allowed for digital imaging systems to communicate, regardless of the manufacturer.

• RIS

• HL7

• DICOM

• PACS

Which of the following systems captures the x-ray image, converts it to light, and then releases electrons to be stored as a latent image?

• Film-screen radiography

• Computed radiography

• Direct digital imaging

• Indirect digital imaging

A specific set of steps designed to solve a problem or complete a task.

• Calculation

• Computation

• Algorithm

• Guideline

The number of shades of gray that can be represented on an image.

• bit depth

• matrix size

• dynamic range

• spatial resolution

The CR reader uses _____ to release the energy that is trapped within the phosphor centers.

• red laser light

• white fluorescent light

• infrared light

• ultraviolet light

To prevent a moiré pattern in your CR image, it is best to have the grid lines running _____ to the direction of the laser beam.

• perpendicular

• parallel

• diagonal

• transverse

Nyquist theorem refers to the

• the accuracy of the histogram

• the efficiency of the FPD

• the sampling frequency of the digital data

• the brightness of the laser beam

______ phosphors are grown into thin need-like columns.

• structured

• turbid

• fixed

• unstructured