ARMRIT Practice Test (MRI Technologist Quick Reference and Study Guide ARMRIT) with Complete Solutions!!
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Course
ARMRIT
Institution
ARMRIT
The components of the Gyro-magnetic ratio are: - ANSWER-Magnetic moment to angular momentum
Which type of electromagnetic coils produce smaller magnetic field which allow spatial localization to be performed? - ANSWER-Gradient coils
Which type of MRI magnet requires cryogen to cool magnetic c...
ARMRIT Practice Test (MRI Technologist
Quick Reference and Study Guide
ARMRIT) with Complete Solutions!!
Magnetism can be defined as the ability of certain substances to attract: - ANSWER-
Iron, Cobalt, Nickel
The components of the Gyro-magnetic ratio are: - ANSWER-Magnetic moment to
angular momentum
Which type of electromagnetic coils produce smaller magnetic field which allow spatial
localization to be performed? - ANSWER-Gradient coils
Which type of MRI magnet requires cryogen to cool magnetic coils to 4 degrees Kelvin?
- ANSWER-Superconductive
T2 is the measurement of time for the transverse component of the net magnetization
vector to decrease what percentage of its maximum value after the application of a 90
degree radio frequency pulse: - ANSWER-37%
Which cryogenic material can produce temperature as low as 4 degrees Kelvin? -
ANSWER-Liquid Helium
The T1 process is also known as - ANSWER-Spin-Lattice
a 90 degree radio-frequency pulse will alter the net magnetization vector. Another effect
is: - ANSWER-The hydrogen protons will have phase coherence.
Which type of MRI magnet requires no electricity to maintain its magnetic field and can
weigh from 18,000 lb. to 200,000 lb.? - ANSWER-Permanent
To describe the uniformity of the MRI system's main magnetic field, the term employed
is - ANSWER-Homogeneity
The purpose of magnetic resonance angiography is to image the - ANSWER-Blood
Flow
Magnetic Resonance Imaging is derived from the process known as: - ANSWER-
Nuclear Magnetic resonance
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