Magnetic Resonance Angiography (MRA) Quiz
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Magnetic Resonance Angiography (MRA) Quiz

Test your knowledge of Magnetic Resonance Angiography, a technique used to visualize blood vessels. This quiz covers the principles and types of MRA, including Time of Flight and Phase-contrast MRA. Learn about GRE pulse sequences and how they contribute to high-quality images.

Created by
@LucidCornet

Questions and Answers

What is the primary advantage of gradient echo pulse sequences in terms of scan time?

Reduced repetition time and smaller flip angles

What type of weighting can be obtained with gradient echo pulse sequences?

T1, proton density, and T2* weighting

What is the reason for the flow sensitivity of gradient echo pulse sequences?

The use of gradients that do not compensate for magnetic field inhomogeneities

What is a disadvantage of gradient echo pulse sequences compared to spin echo sequences?

<p>Lower signal-to-noise ratio</p> Signup and view all the answers

What is the typical state of most gradient echo sequences?

<p>Steady state</p> Signup and view all the answers

What is a potential application of gradient echo pulse sequences?

<p>Magnetic resonance angiography</p> Signup and view all the answers

What is the primary purpose of Perfusion Weighted Imaging (PWI) in the diagnosis of abnormalities?

<p>To study the uptake of contrast medium by the lesion</p> Signup and view all the answers

In which type of MR imaging does high signal intensity appear at the area of restricted diffusion?

<p>Diffusion Weighted Imaging (DWI)</p> Signup and view all the answers

What is the technique used in Functional MRI (fMRI) to demonstrate functional brain activity?

<p>Blood Oxygenation Level Dependent (BOLD)</p> Signup and view all the answers

What is the primary application of Magnetization Transfer (MT) Contrast in MRI?

<p>To suppress the background tissue and increase the conspicuity of vessels and certain disease processes</p> Signup and view all the answers

Which of the following MRI techniques is mainly useful in brain to differentiate salvageable and non-salvageable tissue after brain stroke?

<p>Diffusion Weighted Imaging (DWI)</p> Signup and view all the answers

What is the purpose of Magnetization Transfer (MT) Contrast in TOF MRA images?

<p>To suppress the background tissue and improve contrast in TOF MRA images</p> Signup and view all the answers

What is the primary purpose of MRA?

<p>To visualize the blood vessels more clearly than surrounding tissues</p> Signup and view all the answers

Which of the following MRA techniques is commonly used to demonstrate arterial and venous flow in head, neck, and peripheral vessels?

<p>Time of Flight MRA (TOF-MRA)</p> Signup and view all the answers

What is the main advantage of Phase Contrast MRA (PC-MRA) over Time of Flight MRA (TOF-MRA)?

<p>Excellent background suppression</p> Signup and view all the answers

Which of the following is NOT a type of MRA technique?

<p>Diffusion Weighted MRA (DW-MRA)</p> Signup and view all the answers

What is the primary difference between GRE pulse sequences used in MRA and those used in other MRI techniques?

<p>The flow sensitivity of the pulse sequences</p> Signup and view all the answers

Which of the following MRI techniques is most closely related to MRA?

<p>Perfusion Weighted Imaging (PWI)</p> Signup and view all the answers

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