100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
ARDMS SPI EXAM VERSION A REAL EXAM QUESTIONS AND CORRECT ANSWERS|GRADED A+ $16.99   Add to cart

Exam (elaborations)

ARDMS SPI EXAM VERSION A REAL EXAM QUESTIONS AND CORRECT ANSWERS|GRADED A+

 0 view  0 purchase
  • Course
  • Institution

ARDMS SPI EXAM VERSION A REAL EXAM QUESTIONS AND CORRECT ANSWERS|GRADED A+

Preview 4 out of 41  pages

  • February 13, 2024
  • 41
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers
avatar-seller
ARDMS SPI EXAM VERSION A REAL EXAM
2024-2025 QUESTIONS AND CORRECT
ANSWERS|GRADED A+



Multiple echoes, equally spaced originating from a gas bubble is
called:
a. comet tail
b. ring down
c. slice thickness artifact
d. multipath - ANSWER-b. ring down


An increase in red blood cell velocity will_____ the Doppler Shift:
a. increase
b. decrease
c. not change
d. cannot be predicted - ANSWER-a. increase


The primary advantage of CW Doppler is:
a. range resolution
b. range discrimination
c. range ambiguity

,d. range gating
e. absence of sampling rate - ANSWER-e. absence of sampling rate


The range for ultrasound begins:
a. 20 Hz
b. 20,000 Hz
c. 2 MHz
d. 15 MHz - ANSWER-b. 20,000 Hz (useful frequency range for clinical
imaging is 2MHz-10MHz)


Which instrument control affects the amplitude (dB) of the outgoing
signal:
a. gain
b. receiver gain
c. TGC
d. transmit gain
e. overall gain - ANSWER-d. transmit gain; amplitude can be affected
by the sonographer


Which of the following is used to convert Doppler shift information
into color:
a. high PRF
b. fast Fourier transform
c. autocorrelation
d. time interval histogram - ANSWER-c. autocorrelation

,b is incorrect because fast Fourier transform is the method used to
process conventional Doppler shift information but is too slow a
method for color Doppler


Pulse repetition frequency - ANSWER-Number of pulses that an
ultrasound system transmits into the body each second. Hz. Typically
4-15 KHz. PRF and depth of a view are inversely related: When
system is imaging deeper, the pulse repetition frequency is lower.
Also the number of pulses created each second


The best way to increase the near field length of an ultrasound beam
is to: - ANSWER-increase transducer diameter


The range of frequencies produced by a damped PZT element is
called:
a. fundamental frequencies
b. Q Factor
c. near field
d. bandwith - ANSWER-d. bandwidth


The percentage of time that the ultrasound instrument is emitting
ultrasound is called:
a. PRF
b. pulse duration
c. pulse repetition period

, d. duty factor - ANSWER-d. duty factor; the maximum value is 1, the
minimum is 0


The unit of duty factor is:
a. Hz
b. mm
c. ms
d. unitless - ANSWER-d. unitless


Quality Factor= Fundamental frequency/ bandwidth - ANSWER-This
allows doses of different types of radiation to be compared for their
biological effects.


Clinical imaging transducers are: - ANSWER-wide bandwidth; low q
factor


Power/area= - ANSWER-Intensity


Increasing wavelength will ___________ frequency.
a. increase
b. decrease
c. not change
d. cannot be predicted. - ANSWER-b. decrease


All of the following directly affect frame rate except:

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Nursewilliams29. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

81113 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling

Recently viewed by you


$16.99
  • (0)
  Add to cart