Save
Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account. Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

RADT 456: Image Acqu

Image Acquisition and Evaluation

QuestionAnswer
Change in the number of gray shades Window Width
Change in image brightness Window Level
High contrast is a result of insufficient kV
Pathology: with increasing amounts of air, technique must be.. decreased
An increase in field size will ________ density. increase
The reduction in x-ray phonton intensity as the photon passes through material is termed attenuation
An increase in kVp will produce a _____ - scale contrast longer
Short-scale contrast = Black/White
Filtration has a/an ________ relationship to density. indirect
As SID increases, recorded detail ______. increases
The most common method of designating screen speed is relative speed (par)
T/F: As mA increases contrast increases as well. FALSE
When a slow screen system is used with a fast screen autoatic exposure control system, the resulting images are too light.
Filtration as a/an ______ relationship with contrast. indirect
T/F: As exposure time increases, detail decreases. TRUE
Lag is an abnormal action of what? Intensifying screen
An increase in SID will cause a ________ in magnification. decrease
Recorded detail improves as ___ decreases. OID
T/F: The smaller the focal spot size, the better recorded detail. TRUE
T/F: Motion is the greatest adversary of recorded detail. TRUE
Describes the amount of blackening on an x-ray image or a part of the image. Density
It is recommended to use a grid for any body part measuring ___ cm or greater. 10
T/F: An increase in grid ratio will decrease contrast. FALSE
A wire mesh test is performed to diagnose screen contact
Low kV = _______- scale contrast long
This does not affect the exposure rate of the primary beam. Field size
The absorption of useful radiation by a grid is called Grid cutoff
T/F: Increasing screen speed will increase density. TRUE
A film emulsion having wide latitude is likely to exhibit _______. low contrast
Anode Heel Effect has a/an ________ relationship with density. Indirect
Created by: kjyochum1
Popular Radiology sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards