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
ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT €12,75
In winkelwagen
Snel navigeren naar
Voorbeeld
  2.  
  3. ARMRIT
  4.  
  5. ARMRIT

Tentamen (uitwerkingen)

ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT
 2 keer verkocht
  • Vak
  • ARMRIT
  • Instelling
  • ARMRIT

ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT Different tissues that have signals that appear similar on an MR image are described as: A) hypointense B) hyperintense C) isointense D...

[Meer zien]

Voorbeeld 4 van de 36  pagina's

Document informatie

  • 22 december 2023
  • 36
  • 2023/2024
  • Tentamen (uitwerkingen)
  • Vragen en antwoorden

Onderwerpen

  • armrit exam questions and answers 100 correct
  • armrit exam questions and answers stuvia
  • different tissues that have signals that appear si
  • in a large main magnetic field such as those emplo

Geschreven voor

  • ARMRIT
  • ARMRIT

Verkoper

avatar-seller
NursingTutor1

Ontvangen beoordelingen

Voorbeeld van de inhoud

ARMRIT EXAM QUESTIONS AND ANSWERS 100% CORRECT
Different tissues that have signals that appear similar on an MR image are described as:
A) hypointense
B) hyperintense
C) isointense
D) isodense - ANSWER-isointense
in a large main magnetic field such as those employed in MRI, the motion of a hydrogen
proton has been described as wobbling like a spinning top. this motion is called
A) precession
B) resonance
C) frequency
D) angular momentum - ANSWER-precession
magnetic resonance imaging is derived from the process known as: A) magnetic resonance angiography
B) magnetic relaxation imaging
C) nuclear magnetic resonance
D) nuclear resonance imaging - ANSWER-nuclear magnetic resonance
Once the nmv has moved away from equilibrium, the following will occur
A) the longitudinal component will increase
B) the transverse component will decrease
C) the longitudinal component will stay the same D) the transverse component will increase - ANSWER-the transverse component will increase
In MR, substances respond to a specific radio frequency which is known as:
A) magnetic frequency
B) radio frequency
C) gyro-magnetic frequency
D) resonance frequency - ANSWER-resonance frequency
the introduction of gadolinium based contrast enhancement agents by intra-venous injection can involve passing through an abnormal blood brain barrier. the tissue compartments involved are the:
A) intravascular to interstitial
B) extracellular to intracellular C) hepatobiliary to renal
D) extradural to renal - ANSWER-intravascular to interstitial
t2 is the measurement of time fot the transverse component of the NMV to decrease what percentage of its maximum value after the application of a 90 degree radio-
frequency pulse
A) 33%
B) 63%
C) 37%
D) 67% - ANSWER-37%
in the USA, the MRI system's magnetic field and vector that represents it is symbolized:
A) B1
B) B2
C) B3
D) B0 - ANSWER-B0
The resonance frequency of any substance in a magnetic field can be calculated by employing the A) damadian equation
B) larmor equation
C) faraday equation
D) lauterbur equation - ANSWER-Larmor equation
in a pulse sequence, transmitting an initial 90 degree radio-frequency pulse will cause the NMV to:
A) remain at equilibrium B) shift in both size and direction
C) move to antiparallel
D) rephase - ANSWER-shift in both size and direction
Which type of electromagnetic coils are designed to stimulate and detect an MR signal?
A) gradient coils
B) radio-frequency coils
C) shim coils - ANSWER-radio-frequency
tissues that are less efficient at spin-spin interactions because they contain more free water, such as CSF, should have
A) High T2 values and produce hypointense signals
B) HIgh T2 values and produce hyperintense signals
C) low T2 values and produce hypointnese signals D) low T2 values and produce hyperintense signal - ANSWER-High T2 values and produce hyperintense signals
magnetism can be defined as the ability of certain substances to attract:
A) Copper, aluminum, tin B) Iron, cobalt, nickel
C) Bronze, niobium, titanium
D) Neodymium, niobium-titanium, lodestone - ANSWER-Iron, cobalt, nickel
the purpose of magnetic resonance angiography is to image the:
A) stationary soft tissue
B) blood flow
C) vessel lumen
D) only abnormal vessels - ANSWER-blood flow
the strength of very large magnetic fields like those employed in MRI systems, the SI unit most commonly used is:
A) Tesla
B) Gauss
C) Kilogauss
D) militesla - ANSWER-Tesla
the larmor frequency of hydrogen protons in a 1.5 tesla magnetic field is: A) 6.4 MHZ/Tesla
B) 12.8 MHz/Tesla
C) 25.5 MHz/tesla
D) 63.9 MHz/tesla - ANSWER-63.9 MHz/Tesla
In MR imaging, for chemical substance to be affected by the main magnetic field and the radio-wave it must contain an:
A) Odd number of electrons
B) Odd number of total protons and neutrons
C) Even number of total electrons and neutrons
D) even number of protons - ANSWER-Odd number of total protons and neutrons
A 1.5T magnetic field is equal to:
A) 150 gauss
B) 1500 gauss
C) 15,000 gauss
D) 150,000 gauss - ANSWER-15,000 gauss
the components of the gyromagnetic ratio are:
A) stimulation to relaxation
B) protons to electrons
C) magnetic moment to angular momentum
D) main magnetic field to radio-frequency signal - ANSWER-magnetic moment to angular momentum
fast transition phenomenon and entry phenomenon are theories that explain which of the following characterisitics:
A) T1 effects B) T2 effects
C) hydrogen concentration D) veolcity effects - ANSWER-Velocity effects
the effects of main magnetic field inhomogeneities on the FID signal are corrected for in the spin echo sequence by applying a second radio frequency pulse. the flip angle of this radio frequency pulse is:
A) 45 degrees
B) 60 degrees C) 90 degrees D) 180 degrees - ANSWER-180 degrees
of the following statements, which describes part of the basic MR imaging process:
A) a patient is placed isocenter to ionizing radiation
B) the patient is exposed to ionizing radiation
C) the generated image contains hypersense and hypodense areas
D) radio frequency signals interact with hydrogen protons - ANSWER-radio frequency signals interact with hydrogen protons
which type of electromagnetic coils correct inhomogeneities in the main magnetic field?
A) gradient coils
B) radio frequency coils
C) shim coils - ANSWER-shim coils
immediately after an initial 90 degree radio frequency pulse is turned off, the hydrogen protons will begin to:
A) Rephase
B) Dephase
C) Stay in the transverse plane
D) Stay in phase - ANSWER-Dephase
tissues that are very efficient at spin-lattice interactions near the larmor frequency, such as fatty tissues should have:
A) Low T1 values and produce hyperintense signals
B) High T1 values and produce hyperintense signals
C) High T1 values and produce hypointense signals
D) Low T1 values and produce hypointense signals - ANSWER-Low T1 values and produce hyperintense signals
T1 is the measurement of time for the longitudinal component of the NMV to recover what percentage of its original value after the application of a 90 degree radio frequency
pulse?
A) 33%
B) 63%
C) 37%
D) 67% - ANSWER-63%

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 NursingTutor1. Stuvia faciliteert de betaling aan de verkoper.

Zit ik meteen vast aan een abonnement?

Nee, je koopt alleen deze samenvatting voor €12,75. 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

Laatst bekeken door jou

Samenvatting ·

(3)

Samenvatting Omgaan met agressie

€12,75  2x  verkocht
  • (0)
In winkelwagen
Toegevoegd