THEORY GUIDE Glossary
10DEC05
TG4825-1
Page
116 of 120
EVP Enhanced Visual Processing. An algorithm for improving contrast
included in the IPL.
Exam A collection including a raw image, versions of the image, exam
information, and patient information.
Exam information Data that describes an exam procedure.
Exam type Body part and projection. Body position is optional data.
FIFO BUFFER FIRST IN, FIRST OUT BUFFER. The CR 825/850 SYSTEM uses a
FIFO BUFFER on the DIGITIZER BOARD A3 to receive pixel data
from the PMT/DAS BOARD A5, assemble it into a line of data, and
send it to the MCPU BOARD A2.
Flat field exposure PLATE exposed from 10 mR to 30 mR for calibration.
Gain The increase in signal when transferred from one point to another.
GP CASSETTE General Purpose CASSETTE.
HIS/RIS Hospital Information System/Radiology Information System. HIS/RIS
indicates that both systems are at the same site, but does not indicate
that the systems are connected or are part of the same network.
HR CASSETTE High Resolution CASSETTE. The layer of PHOSPHOR on the
SCREEN is thinner than on a GP CASSETTE. The thinner layer
allows the HR CASSETTE to capture more information than a GP
CASSETTE.
Image Data in a DICOM-compliant format, which includes image data, patient
information, and information about the procedure for capturing the
image data.
INTERLOCK
SWITCH
De-energizes all dangerous systems if the DOOR for user access is
open.
IPL Image Processing Library. The image processing algorithms used by
the CR 825/850 SYSTEM.
kV Kilovolts. A measurement of the strength of an X-ray beam.
kVp Kilovolts peak.
Term Description
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