basic principles of echocardiography Questions with
correct answers
sound is the result of what Correct Answer-mechanical energy traveling
through matter as a wave
how are sound waves transmitted Correct Answer-as a series of
alternating pressure waves with high pressure and low pressure pulses
compression Correct Answer-high pressure areas
- where the particles have been squeezed together
rarefraction Correct Answer-the low pressure areas
- where the particles have been spread apart
sound frequency of audible sound waves Correct Answer-20 Hz to
20000 Hz
sound frequency of ultrasound waves Correct Answer-20 KHz
sound frequency of medical imaging Correct Answer-2-20 MHz
ultrasound waves of echo Correct Answer-propagate through body
tissues (1540 m/s) and fluids producing compression and rarefaction of
conducting medium
, a zone of compression and an adjacent zone of rarefaction constitute one
cycle of an ultrasound wave or wavelength
principles of echo Correct Answer-wavelength: distance covered by one
cycle
frame rate = number of updated images/s
frequency: number of cycles per unit time
high frequency of ultrasound Correct Answer-high resolution
low penetration
low frequency of ultrasound Correct Answer-low resoluon
higher penetration
instrumentation and equipment of ultrasound Correct Answer-cardiac vs.
abdominal
sector transducer
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $14.49. You're not tied to anything after your purchase.