Questions And Answers
Cardiac strain imaging is used to evaluate the function of the -
correct answer ✅Myocardium
The unit for the period of a diagnostic ultrasound wave is: -
correct answer ✅Microsecond
Volume averaging artifact is greatest in: -
correct answer ✅Deep lesions
Which of the following is responsible for comet tail artifact? -
correct answer ✅Reflection
You switch from a 5MHz curved probe to a 2.5MHz sector probe to
image deeper in the abdomen. How is the wavelength affected by
the change to the new probe? -
correct answer ✅It Doubles
Which of the following is a resonance artifact only seen with a
gas/tissue interface? -
correct answer ✅Ring down
,SPI Perform ultrasound examination Pt. 1
Questions And Answers
The frequency of the transducer is increased from 2.5MHz to
10MHz what happened to the wavelength? -
correct answer ✅Decreases to 1/4 original wavelength
The AIUM has stated that there have been no confirmed reports of
thermal bioeffects to living mammals with ultrasound exposure, if
the temperature rise in tissue is less than: -
correct answer ✅2 degrees C
Which of the following bioeffects refers to the formation of
microbubbles that burst and cause damage to tissues? -
correct answer ✅Transient cavitation
Sound energy that arrives at the transducer before the rest of the
original pulse finishes transmitting will cause what acoustic artifact?
-
correct answer ✅Range ambiguity
The % of time that a pulsed ultrasound unit is emitting pulses is the
_____. -
correct answer ✅Duty factor
, SPI Perform ultrasound examination Pt. 1
Questions And Answers
Which image demonstrates ring down artifact? -
correct answer ✅Image A
___________ artifact appears as multiple parallel, equidistant lines
that look like steps on a ladder. -
correct answer ✅Reverberation
Which artifact is demonstrated on the image (yellow arrows)? -
correct answer ✅Refractive shadowing
What technique is used to reduce lobe artifact? -
correct answer ✅subdicing
All of the following are important parts of Sonographer-Patient
communication except: -
correct answer ✅Offering advice on ways to alleviate symptoms
until the doctor treats the problem
The diagram at the top of the image demonstrates what sound
wave phenomenon? -
correct answer ✅Constructive interference