Terms
This is the sending of images electronically over distances
Teleradiology
Digital images are acquired through…
computerized devices
CR and DR absorb what type of radiation
Remnant radiation
Exposure factors
Photographic, Geometric, correct position
Anything that interferes with formation of the image
Noise
Two dimensional image
Matrix
Contrast and detail can be electronically manipulated through
sofrware programs, “image postprocessing”
With the DR the ____ capture the remnant radiation
Array of DELS (detector elements)
What type of approach should be used in radiography
Systematic Approach
Smaller pixels have what effect on spatial resolution
Better spatial resolution
Small square elements in the matrix
Pixels
Digital image processing dates back to
Early programs of NASA
With the Dr these discharge and release any residual image
The AMA (active matrix array)
We should follow a simple evaluation criterial in the form of
A check list
The phosphor with CR is
Photostimulable
Image detail, also known as
Spatial Resolution
Increasing the matrix size has what effect on spatial resolution
Image quality improves
CR requires a
Image receptor or cassette
What is the first step you should take in preparation of image production
Carefully read the radiographic examination request so you have a clear understanding
The CR image plate can hold the static latent image for how long
up to 24hrs without loss of information, 48hrs but might have loss of information
Failure of the image system to record densities, caused by insufficient X-ray photons
Quantum Mottle
Pixel numbers represents
brightness levels in the image
With the CR the receptor consists of metal imaging plate which is coated on one side with what
Photostimulable Phosphor
How do you identify a patient
ASK their name and check their bracelet, unresponsive patient check their band.
With CR what erases any residual image
The intense exposure of a sodium vapor lamp