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

VAT150

Key Terms

TermDefinition
Cathode A negatively charged electrode that produces electrons in the x-ray tube.
Anode A positively charged electrode in the x-ray tube consisting of a tungsten target that produces x-rays when hit with electrons from the cathode.
ALARA As Low As Reasonably Achievable, program placed by the National Committee on Radiation Protection ensuring that radiation exposure is as low as possible by wearing PPE and using non-manual restraint for veterinary patients.
Kilovoltage Peak (kVp) The maximum voltage applied across an x-ray tube that determines the energy of the electrons produced.
Heel Effect Visible differences in the density produced on a radiograph; there is greater radiation intensity on the cathode side because of the angle of the target on the anode side.
Radiographic Density The degree of blackness on a radiograph.
Milliamperage (mA) The current produced by the x-ray tube during an exposure.
Contrast Is defined as the differences in radiographic density between adjacent areas on a radiographic image.
Radiolucent Air on a radiograph turn dark or black, it allows more of the radiation to pass through.
Radiopaque Will appear white with more dense tissue as it absorbs more radiation.
Penumbra Effect Causes loss of detail and results in collimation.
Source-Image Distance (SID) Distance between the source of the x-ray and the film. (Interchangeable with FFD).
Film-Focal Distance (FFD) Distance between the source of the x-ray and the film. (Interchangeable with SID).
Object-Film Distance (OFD) The distance from the object being imaged to the recording surface. (Digital Imaging)
Object-Image Distance (OID) The distance from the object being imaged to the recording surface.
Bucky Puts the grid in motion as the x-rays are generated, blurring the white grid lines on the radiograph.
Collimators Consists of adjustable lead shutters installed in the tube head of the x-ray machine.
Focused Grids Have lead strips placed at progressively increasing angles to match the divergence of the x-ray beam
Latent Image The invisible image in the emulsion of an x-ray film produced after the film has been exposed to light.
Anechoic Used to describe tissue that transmits all the sound through to deeper tissue.
Annular Ray Arranges the crystals in concentric rings.
Direct Exposure Film Is more sensitive to direct x-rays than it is to light.
Distance Enhancement Occurs when the sound beam traverses a cystic structure.
Echoic Means that most of the sound is reflected back to the transducer
Film latitude The films inherent ability to produce shades of gray.
Fluoroscopy Used for those patients who visualization of dynamic structures is of importance.
Hyperechoic Used to describe tissues that reflect more sound back to the transducer than surrounding tissues.
Hypoechoic Used to describe tissues that reflect less sound back to the transducer than surrounding tissues.
Intensifying Screens Contain fluorescent crystals bound to a cardboard or plastic base.
Isoechoic Used to describe tissue that appears to have the same echotexture on the screen as surrounding tissues.
Maximum Permissible Dose (MPD) The National Council on Radiation Protection and Measurements recommends that the dose for occupationally exposed persons not exceed 5rem/yr.
Mirror Image Artifact creates the illusion of the liver on the thoracic side of the diaphragm or the appearance of a second heart beyond the lung interface.
Roentgen Equivalent In Man (Rem) Rem units are used to express the dose equivalent that results from exposure to ionizing radiation.
Sievert (SV) Is the current terminology used to define a rem (1 Sv = 100rem)
Slice Thickness When the transducer receives echoes with different amplitudes from the same area at the same depth.
Sonolucent Means that most of the sound is transmitted to the deeper tissues, with only a few echoes reflected back to the transducer.
Ultrasonography Diagnostic Ultrasound is a noninvasive method of imaging soft tissues.
Bisecting Angle Technique A radiographic technique in which the film is placed as close to the intended tooth as possible.
Parallell Technique A radiographic technique in which the film is placed in the mouth parallel to the teeth and the cone is aimed perpendicular to the film and tooth.
Created by: Hammie82298
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