Save
Upgrade to remove ads
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

Sonography

TermDefinition
Anechoic Without echoes; appears black on the image (e.g., fluid)
Frequency (MHz) Number of sound wave cycles per second; higher = better resolution but less penetration
Ultrasound High-frequency sound waves used to create real-time images of internal structures
Pulsed Doppler Doppler mode measuring blood flow velocity at a specific location
Hypoechoic Produces fewer echoes than surrounding tissue; appears darker
Cine Loop Short sequence of stored ultrasound frames played back like a video clip
Attenuation Weakening of amplitude or intensity as a sound wave travels through a medium
TGC (Time Gain Compensation) Selective adjustment of brightness at specific depths to create a uniform image
Echogenicity Ability of tissue to reflect ultrasound waves and produce echoes
Echo Reflected sound wave that returns to the transducer after interacting with tissue
Resolution Ability to distinguish two separate structures
Acoustic Window Body surface area where the ultrasound beam can enter with minimal obstruction
Homogenous Uniform texture or echo pattern throughout a structure
Isoechoic Same echogenicity as surrounding tissues; blends in
Heterogenous Mixed or varied texture/echo pattern within a structure
Gain Overall brightness control of the image; adjusts amplification of all returning echoes
Artifact Image feature that does not represent true anatomy (e.g., shadowing, enhancement)
Depth Adjusts how deep the ultrasound image extends into the body
Hyperechoic Produces more echoes than surrounding tissue; appears brighter
Focus Region where ultrasound beam is narrowest, producing clearest resolution
Zoom Enlarges a selected region of interest for closer evaluation
Dual (Split Screen) Displays two images side-by-side for comparison
Doppler/Color Gain Controls sensitivity of Doppler or color imaging; too high = noise, too low = missed flow
Color Doppler Displays blood flow direction and velocity using color coding
Transducer/Probe Correct match: Handheld device that sends ultrasound waves and receives returning echoes
Created by: kristen.carmon43
 

 



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