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MRI PHYSICS FINAL Exam Questions and Answers (Latest Update 2024) 40 Questions
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MRI PHYSICS FINAL Exam Questions and Answers (Latest Update 2024) 40 Questions
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MRI PHYSICS FINAL Exam Questions andAnswers (Latest Update 2024) 40
Questions
Nuclei that have the strongest magnetic moments are those
with - Correct Answer ✅ only hydrogen
The Larmor frequency of nuclei depends on: - Correct
Answer ✅ # of protons and neutrons in the nucleus
gyromagnetic ratio
main magnetic field strength
molecule in which nuclei are located
The spin-lattice relaxation time in MRI is also called the -
Correct Answer ✅ longitudinal relaxation time
The shortest relaxation time in MRI is the - Correct Answer
✅ t2*
The coil that provides the best signal to noise ratio is the -
Correct Answer ✅ surface coil
, MRI PHYSICS FINAL Exam Questions and
Answers (Latest Update 2024) 40
Questions
The relaxation time that controls the FID is the - Correct
Answer ✅ t2*
Cryogenic superconductive magnets have their electrical
windings cooled by - Correct Answer ✅ liquid helium
The Larmor frequency of hydrogen nuclei at 1.5T is about -
Correct Answer ✅ 63.9 MHz
The brightest signal from a T2- weighted spin echo MRI image
would be from - Correct Answer ✅ pure water (3000 ms)
The brightest signal from a T1- weighted spin echo MRI image
would be from - Correct Answer ✅ adipose tissue (180 ms)
A T1 weighted spin echo image is produced by using a pulse
sequence with ________ TE time and a ______ TR time. -
Correct Answer ✅ short, short
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