Module 3 Flashcards
Scanning planes
Ascites
Accumulation of serous fluid anywhere in the abdominopelvic cavity.
Hypoechoic
Not as bright as the surrounding tissue
Echoegenic
Ability to produce bright white echoes
What is enhancement
TGCs
Why do structures shadow
Wave is ending or terminating
Focal organ disease
Describe changes to the organ in the same manner as diffuse, but including the area of change.
Diffuse organ disease
Describe changes to normal organ size, echogenicity, vascularity, boarders, and effect on surrounding structures.
Normal aorta sizes
Less than 3
Acoustic shadows
“Reduced echo amplitude” or echo “drop off” posterior to a structure that attenuates the sound beam.
Cyst
Anechoic, enhancement, smooth walls.
Sludge
Gravity dependent low level echos seen in the gallbladder lumen.
Gallstone
Echogenic focus within gallbladder lumen, posterior acoustic shadowing, gravity dependent movement seen with the change of patient position.
Ultrasound
Above human range of hearing; above 20,000 Hz or 20 KHz
Hyperechoic
brighter than surrounding tissue