Exam (elaborations)
ARMRIT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
- Course
- Institution
ARMRIT EXAM QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS
[Show more]
1 review
By: tfox911medic • 5 months ago
Content preview
ARMRIT EXAM QUESTIONS AND ANSWERSWITH COMPLETE SOLUTIONS
Different tissues that have signals that appear similar on an MR image are described as:
A) hypointense
B) hyperintense
C) isointense
D) isodense
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
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 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
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
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
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%
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
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
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
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
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
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
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 Classroom. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71184 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now