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MRI PHYSICS FINAL Exam 2024/2025(Questions With 100% Correct Answers)A+ Graded Verified $11.99   Add to cart

Exam (elaborations)

MRI PHYSICS FINAL Exam 2024/2025(Questions With 100% Correct Answers)A+ Graded Verified

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  • MRI PHYSICS
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  • MRI PHYSICS

Nuclei that have the strongest magnetic moments are those with - ANSWER only hydrogen The Larmor frequency of nuclei depends on: - ANSWER # of protons and neutrons in the nucleus gyromagnetic ratio main magnetic field strength molecule in which nuclei are located The spin-lattice...

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  • October 3, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • MRI PHYSICS
  • MRI PHYSICS
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MRI PHYSICS FINAL Exam 2024/2025(Questions With
100% Correct Answers)A+ Graded Verified
Nuclei that have the strongest magnetic moments are those with - ANSWER only
hydrogen

The Larmor frequency of nuclei depends on: - 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 - ANSWER longitudinal
relaxation time

The shortest relaxation time in MRI is the - ANSWER t2*

The coil that provides the best signal to noise ratio is the - ANSWER surface coil

The relaxation time that controls the FID is the - ANSWER t2*

Cryogenic superconductive magnets have their electrical windings cooled by -
ANSWER liquid helium

The Larmor frequency of hydrogen nuclei at 1.5T is about - ANSWER 63.9 MHz

The brightest signal from a T2- weighted spin echo MRI image would be from -
ANSWER pure water (3000 ms)

The brightest signal from a T1- weighted spin echo MRI image would be from -
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. - ANSWER short, short

A T2 weighted spin echo image is produced by using a pulse sequence with ______ TE
time and a _______ TR time. - ANSWER long, long

A proton density weighted spin echo image is produced by using a pulse sequence with
______ TE time and a _______ TR time. - ANSWER short, long

The pulse sequence most often used to nullify the signal from adipose tissue is -
ANSWER STIR

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