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MRI Physics
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What type of magnet is used with most MRI systems currently manufactured?
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Superconducting
Superconducting magnet systems are the most common due to the high field strength and the associated imaging capabilities.
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Terms in this set (93)
What type of magnet is used with most MRI systems currently manufactured?
Superconducting
Superconducting magnet systems are the most common due to the high field strength and the associated imaging capabilities.
What element in the body is the principal nucleus utilized in clinical MR imaging?
Hydrogen
Hydrogen is the principal nucleus utilized in MR imaging, a primary element in both water and fat, two tissue contrasts in MRI.
The precessional frequency of hydrogen, according to the Larmor equation, at 3Tesla is:
127.71 MHz
The Larmor equation for precessional frequency: 42.57 MHz per Tesla
A system operating at 30,000 Gauss has a field strength of:
3 Tesla
10,000 Gauss = 1 Tesla
The protons that align themselves with the direction of the static magnetic field (B0) exist in a ___________energy state than those anti-parallel to the magnetic field.
Lower
Lower energy protons are parallel to magnetic field direction
