Cuttin mAs & taking names
The amount of overall blackness on a processed image
Density
Device used to measure part thickness
Caliper
This results from the radiographic misrepresentation of either the size or the shape of the anatomic part.
Distortion
Three boxes located directly in front of the IR
Ionization chamber
S numbers are ________ related to the exposure to the plate
Inversely
Once a predetermined amount of radiation has reached the patient the exposure is terminated
AEC
Used for reference for selecting proper technique by referring to body part and size of part
Technique chart
The two different ways shape distortion can appear
Foreshortening & elongation
Type of technique chart that uses the same kvp but different mAs
Fixed kvp variable mAs chart
E.I numbers are ______ related to the exposure plate
Directly
Starts up when the exposure time reaches more than 150-200% of the expected exposure time
Back up timer
Any unwanted image on a radiograph
Artifact
What may occur if proper centering is not used with AEC cells
Overexposure/Underexposure
A deviation index (DI)of 0 would indicate what kind of difference between desired EI & actual EI
No difference
What type of contrast agent(positive or negative) increases the attenuation of the X-ray beam
Positive
Cirrhosis would need what change in technique
Decrease because it is an additive pathology
This needs to be done to ensure X-ray equipment is performing correctly
Calibration
Deviation index above 0 means
Increased exposure to IR
Which type of cast requires an increase in technique
Plaster
a Deviation index below 0 means
Decrease exposure to IR
Low contrast has a _____ scale of contrast
Long
Emphysema would require what change to technique
Decrease because it is a destructive pathology
High contrast has a _____ scale of contrast
Short/low
State the inverse square law
intensity 1 = (SID2)2
————————————-
Intensity 2 = ( SID1)2
When you click on a certain exam type in the control panel and it gives you an average technique for that part
Anatomically Programmed Technique