MRI PHYSICS MIDTERM- ch 1 Questions Solved Correctly
There are a greater proportion of spins with their magnetic moments aligned in the same direction as Bo
than against it. - Answers TRUE
All active MR elements have what in common? - Answers odd atomic mass
The static external magnetic field is called Bo. - Answers TRUE
All things are made of atoms. - Answers TRUE
As the strength of the magnetic field increases, fewer nuclei have enough energy to oppose the
magnetic field in the anti-parallel direction. - Answers TRUE
The number of protons in the nucleus of atoms is the____? - Answers Atomic Number
The magnetic vector produced as a result of alignment of the excess hydrogen nuclei with Bo is the
definition of what? - Answers NMV
The most commonly utilized proton in MR imaging is? - Answers Hydrogen
In which plane is the NMV in an MRI prior to excitation? - Answers Longitudinal
The isotope of the hydrogen nucleus that has an atomic mass number of 1 is? - Answers Protium
Nuclei that align parallel and anti-parallel when exposed to an external magnetic field is an example of
which theory? - Answers Classical Theory
If there were an equal number of low and high energy nuclei the NMV: - Answers would be 0
There are a greater proportion of spins with their magnetic moments aligned in the same direction as Bo
than against it. - Answers TRUE
All active MR elements have what in common? - Answers odd atomic mass
The static external magnetic field is called Bo. - Answers TRUE
All things are made of atoms. - Answers TRUE
As the strength of the magnetic field increases, fewer nuclei have enough energy to oppose the
magnetic field in the anti-parallel direction. - Answers TRUE
The number of protons in the nucleus of atoms is the____? - Answers Atomic Number
The magnetic vector produced as a result of alignment of the excess hydrogen nuclei with Bo is the
definition of what? - Answers NMV
The most commonly utilized proton in MR imaging is? - Answers Hydrogen
In which plane is the NMV in an MRI prior to excitation? - Answers Longitudinal
The isotope of the hydrogen nucleus that has an atomic mass number of 1 is? - Answers Protium
Nuclei that align parallel and anti-parallel when exposed to an external magnetic field is an example of
which theory? - Answers Classical Theory
If there were an equal number of low and high energy nuclei the NMV: - Answers would be 0
