chapter 8 Flashcards
What imaging mode displays the returning echoes as dots of varying brightness?
B-mode
Which of the following Doppler techniques does not display an image and uses two crystals- one for sending and one for listening?
Continuous Wave Doppler
Which control enhances the resolution of the image in a specific area?
Transmit zone and focus
Which control allows for the adjustment of the brightness of the entire image?
Overall gain
Which control allows for the adjustment of the brightness of a specific depth within the image?
Time gain compensation
Which control varies the penetration of the echoes displayed on the monitor?
Depth
Which control would allow the sonographer to select the depth at which the velocity of the blood is measured within the selected vessel?
Pulsed-Wave Doppler
What term means toward the feet, away from head?
inferior
What term means located on the opposite side of the body?
contralateral
What term means closer to the attachment of an extremity?
Proximal
Which control relates to the amount of energy the transducer is emitting?
Acoustic Power
The measurement tools utilized in sonography are termed?
calipers
Which mode displays the strength of the returning echoes as spikes on a scale?
A-mode
What term is defined as away from the middle or midline of the body?
lateral
What position is the patient in when he or she is lying on his or her back?
supine
What term is described as toward the front of the body?
anterior
What position is described as lying face down?
prone
Which of the following is not a term for the reference point found on a transducer?
spike
Which control allows the sonographer to rewind the image?
Cine loop
Which control allows the demonstration of motion of the structures along a single scan line?
M-mode
