MRI Reviewer 1

composing of only a proton and an electron, creates a very weak miniature magnet

• Hydrogen
• Helium
• Neutron
• Carbon

◦As the external magnetic field ceases, the hydrogen returns(relaxes) to its stable state

• True
• False

When did magnetic resonance become an accepted imaging modality?

• 1980
• 1970
• 1995
• 2005

A noninvasive radiologic imaging modality that uses a large magnetic field source and coils that transmit and receive radiofrequencies (RF)/radio waves to produce images, primarily for diagnosing diseases

• Magnetic Resonance Imaging Scanners
• Magnetic Radiology Interpretation
• Medical Radiologic Instrument
• Magnetic Resonance Imaging System

The patient is scanned in a machine that produces a strong magnetic field, and imaging is planned by the ______ in a separate room

• Technologist
• Nurse
• Patient
• Medical Secretary

The patient is slid into the machine using a mechanically moving table, can be controlled only inside the scanning room or but not the control room

• False
• True

The patient enters the scanner entrance always head first

• False
• True

essentially a giant magnet that produce a strong magnetic field that forces atoms in the patient’s body to align with its magnetic field

• MRI scanner
• Ultrasound Scanner
• X-ray Machine
• PET Scanner

Magnetic field strengths in MRI are so strong it can change the atomic alignments in the body

• True
• False

Magnets used in manufacturing MRI scanners have field strengths of

• 0.3 – 9.0 Tesla
• 0.001 Tesla
• 20 Tesla
• 50 Tesla