MRI - Reviewer 5

Any material capable of producing a magnetic field outside itself and attracting iron (Fe).

• Magnet
• MAGNETISM
• Static magnetic field
• Radiofrequency field

A number of magnetic fields are used by the MRI scanner to generate an image.

• MAGNETISM
• Static magnetic field
• Radiofrequency field
• Time-varying magnetic field

the primary field produced by the main magnet of the scanner.

• Static magnetic field
• Radiofrequency field
• Time-varying magnetic field
• Magnet

the secondary field.

• Radiofrequency field
• Time-varying magnetic field
• Magnet
• MAGNETISM

causes field distortions produced by the gradient coils.

• Time-varying magnetic field
• Magnet
• MAGNETISM
• Static magnetic field

ultra low field strength

• <0.2 Tesla
• 0.2 - 0.4 Tesla
• 0.5 - 1.4 Tesla
• 1.5 - 3.0 Tesla

low field strength

• 0.2 - 0.4 Tesla
• 0.5 - 1.4 Tesla
• 1.5 - 3.0 Tesla
• 4.0 - 8.0 Tesla

mid (average) field strength

• 0.5 - 1.4 Tesla
• 1.5 - 3.0 Tesla
• 4.0 - 8.0 Tesla
• <0.2 Tesla

high field strength

• 1.5 - 3.0 Tesla
• 4.0 - 8.0 Tesla
• <0.2 Tesla
• 0.2 - 0.4 Tesla

ultra high field strength

• 4.0 - 8.0 Tesla
• <0.2 Tesla
• 0.2 - 0.4 Tesla
• 0.5 - 1.4 Tesla