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MRI Additional Magnetic Field Quiz

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Questions and Answers

What does the indication +Gz in Figure 29 mean?

A slightly stronger Bo field in the head compared to the iso-center (correct)

A stronger Bo field in the feet compared to the head

An equal Bo field intensity throughout the body

A slightly weaker Bo field in the head compared to the iso-center

Why do protons in the head spin faster than those in the iso-center?

Due to a weaker Bo field in the head

Due to a stronger Bo field in the head (correct)

Due to the presence of a gradient magnetic field in the z-direction

Due to an equal Bo field across the body

How does the choice of frequency range for RF excitation pulse impact imaging?

It changes the strength of the Bo field

It influences the direction of the gradient magnetic field

It determines the orientation of the MRI slices

It affects which section of the patient will generate an MRI signal (correct)

What is another term for selecting specific sections based on Larmor frequencies?

<p>Slice-Selection</p> Signup and view all the answers

Why can MRI slices be acquired at any angle or orientation in a patient?

<p>As gradient magnetic fields can be applied in any orientation</p> Signup and view all the answers

MRI Additional Magnetic Field Quiz

Choose a study mode

Podcast

Questions and Answers

What does the indication +Gz in Figure 29 mean?

Why do protons in the head spin faster than those in the iso-center?

How does the choice of frequency range for RF excitation pulse impact imaging?

What is another term for selecting specific sections based on Larmor frequencies?

Why can MRI slices be acquired at any angle or orientation in a patient?

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