100% tevredenheidsgarantie Direct beschikbaar na je betaling Lees online óf als PDF Geen vaste maandelijkse kosten
logo-home
Eerder door jou gezocht
Eerder door jou gezocht
logo
CCI: Physics of Ultrasound-URR Questions With Answers Graded A+ Assured Success €7,85
In winkelwagen
Snel navigeren naar
Voorbeeld
  2.  
  3. CCI: Physics Of Ultrasound-URR
  4.  
  5. CCI: Physics of Ultrasound-URR

Tentamen (uitwerkingen)

CCI: Physics of Ultrasound-URR Questions With Answers Graded A+ Assured Success
 0 keer verkocht
  • Vak
  • CCI: Physics of Ultrasound-URR
  • Instelling
  • CCI: Physics Of Ultrasound-URR

Frequencies used in transthoracic imaging are usually in the range of ____________. Frequencies used in transesophageal imaging are usually in the range of ______________. A) 3-6 MHz;6-8 MHz B) 3-6 MHz; 5-7 MHz C) 2.5-4 MHz; 5-7 MHz D) 1-3 MHz; 6-8 MHz - 2.5-4 MHz; 5-7 MHz Which of the follow...

[Meer zien]

Voorbeeld 3 van de 23  pagina's

Document informatie

  • 25 augustus 2024
  • 23
  • 2024/2025
  • Tentamen (uitwerkingen)
  • Vragen en antwoorden

Onderwerpen

  • cci physics of ultrasound urr

Geschreven voor

  • CCI: Physics of Ultrasound-URR
  • CCI: Physics of Ultrasound-URR

Verkoper

avatar-seller
PatrickKaylian

Ontvangen beoordelingen

Voorbeeld van de inhoud

CCI: Physics of Ultrasound-URR
Frequencies used in transthoracic imaging are usually in the range of ____________. Frequencies used in
transesophageal imaging are usually in the range of ______________.

A) 3-6 MHz;6-8 MHz

B) 3-6 MHz; 5-7 MHz

C) 2.5-4 MHz; 5-7 MHz

D) 1-3 MHz; 6-8 MHz - 2.5-4 MHz; 5-7 MHz



Which of the following will aid in visualization of the endocardium?

A) Increased transducer frequency

B) Larger sector size

C) Increased wall filter

D) Agitated saline contrast - Increased transducer frequency-this will improve spatial and contrast
resolution




Which of the following adjustments will change the image data that will be stored in the memory of the
ultrasound system?

A) Both pre-processing and post-processing

B) Post-processing

C) Changing monitor contrast settings at the beginning of the exam.

D) Pre-Processing - Pre-processing-is performed as the image is "live" or in real time, before it has
been stored to memory.



Which measurement of beam intensity is used to describe levels of intensity associated with US
bioeffects?

A) Spatial peak temporal peak

B) Spatial average temporal peak

C) Spatial average temporal average

,D) Spatial peak temporal average - Spatial peak temporal average



Which of the following technical factors can negatively affect the 2D planimetry evaluation of the mitral
valve?

A) Valve masking from mechanical MVR and lateral resolution

B) Transducer with a short spatial pulse length and long wavelength

C) Lateral resolution and gain settings

D) Transducer with a short spatial pulse length and high frequency - Lateral resolution and gain
settings



________________ occurs posterior to highly attenuating structures.

A) Misregistration

B) Refraction

C) Shadowing

D) Enhancement - Shadowing



If you increase the power output on the machine:

A) Beam intensity and beam penetration increases

B) Beam intensity and the magnitude of the doppler shift increases

C) Beam intensity, resolution and beam penetration increase

D) Beam penetration and the magnitude of the doppler shift increase - Beam intensity and beam
penetration increase



All of the following are techniques used to better visualize the LV apex in the apical view, except?

A) Change to a lower frequency transducer

B) Contrast administration

C) Apply color doppler to the LV chamber

D) Adjust focal zone depth - Change to a lower frequency transducer-a lower frequency probe will
improve penetration but decrease resolution

, Which of the following ultrasound techniques has the highest temporal resolution?

A) 3D imaging

B) 2D imaging

C) Color doppler

D) M-Mode - M-Mode



Lateral resolution is defined as:

A) The ability to differentiate two reflectors that are perpendicular to the US beam

B) The ability to differentiate two reflectors that are moving in a direction parallel to the US beam

C) The ability to differentiate two reflectors that are parallel to the US beam

D) The ability to differentiate two reflectors that are moving in a direction that is perpendicular to the US
beam - The ability to differentiate two reflectors that are parallel to the US beam




When does aliasing occur? - When the frequency shift exceeds the PRF of the transducer



Which of the following system control adjustments will increase the amount of color doppler that is
superimposed over the 2D image?

A) Increased threshold and increased persistence

B) Decrease persistence

C) Increased wall filter

D) Decreased threshold - Increased threshold and increased persistence-Threshold control=Color
priority



While scanning the heart from the apical window, the ventricular chambers are anechoic but artifactual
echoes appear to fill the atria. Which of the following adjustments of the system controls would best
address this issue?

A) Decrease near field gain levels

B) Switch to a higher frequency transducer

C) Increase output power to increase penetration

Dit zijn jouw voordelen als je samenvattingen koopt bij Stuvia:

Bewezen kwaliteit door reviews

Bewezen kwaliteit door reviews

Studenten hebben al meer dan 850.000 samenvattingen beoordeeld. Zo weet jij zeker dat je de beste keuze maakt!

In een paar klikken geregeld

In een paar klikken geregeld

Geen gedoe — betaal gewoon eenmalig met iDeal, creditcard of je Stuvia-tegoed en je bent klaar. Geen abonnement nodig.

Direct to-the-point

Direct to-the-point

Studenten maken samenvattingen voor studenten. Dat betekent: actuele inhoud waar jij écht wat aan hebt. Geen overbodige details!

Veelgestelde vragen

Wat krijg ik als ik dit document koop?

Je krijgt een PDF, die direct beschikbaar is na je aankoop. Het gekochte document is altijd, overal en oneindig toegankelijk via je profiel.

Tevredenheidsgarantie: hoe werkt dat?

Onze tevredenheidsgarantie zorgt ervoor dat je altijd een studiedocument vindt dat goed bij je past. Je vult een formulier in en onze klantenservice regelt de rest.

Van wie koop ik deze samenvatting?

Stuvia is een marktplaats, je koop dit document dus niet van ons, maar van verkoper PatrickKaylian. Stuvia faciliteert de betaling aan de verkoper.

Zit ik meteen vast aan een abonnement?

Nee, je koopt alleen deze samenvatting voor €7,85. Je zit daarna nergens aan vast.

Is Stuvia te vertrouwen?

4,6 sterren op Google & Trustpilot (+1000 reviews)

Afgelopen 30 dagen zijn er 69052 samenvattingen verkocht

Opgericht in 2010, al 15 jaar dé plek om samenvattingen te kopen

Begin nu gratis
€7,85
  • (0)
In winkelwagen
Toegevoegd