different tissues that have signals that appear similar on a mr image are described as: -
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: -
ANSWER Prescession
Magnetic resonance imaging is derived from the process known as: - ANSWER Nuclear
magnetic resonance
Once the net magnetization vector (nmv) has moved away from equilibrium, the following
will occur: - ANSWER The transverse component will increase
In MRI, substances respond to a specific radio frequency which is known as: - ANSWER
Resonance Frequency
The introduction of gadolinum based contrast enhancement agents by intra-venous injection
can involve passing through as abnormal blood brain barrier. The tissue compartments
involved are the: - ANSWER intravascular to interstitial
T2 is the measurement of time for the transverse compnent of the nmv to decrease what
percentage of its maximum value after application of a 90* radio-frequency pluse? -
ANSWER 37%
In the USA the MRI systems main magnet field and the vector that represents it is
symbolized - ANSWER B0
1
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: -
ANSWER Prescession
Magnetic resonance imaging is derived from the process known as: - ANSWER Nuclear
magnetic resonance
Once the net magnetization vector (nmv) has moved away from equilibrium, the following
will occur: - ANSWER The transverse component will increase
In MRI, substances respond to a specific radio frequency which is known as: - ANSWER
Resonance Frequency
The introduction of gadolinum based contrast enhancement agents by intra-venous injection
can involve passing through as abnormal blood brain barrier. The tissue compartments
involved are the: - ANSWER intravascular to interstitial
T2 is the measurement of time for the transverse compnent of the nmv to decrease what
percentage of its maximum value after application of a 90* radio-frequency pluse? -
ANSWER 37%
In the USA the MRI systems main magnet field and the vector that represents it is
symbolized - ANSWER B0
1
