MRI ARTIFACTS

Question 1

Anything appearing on the
image that is not present in the
object scanned
• They may make the image
unclear and harder to interpret,
or they can mimic the
appearance of pathology

Answer 1

IMAGE ARTIFACTS

Question 2

Occurs due to the phenomenon of nuclear dipole-dipole interactions
• shortened T2 relaxation time;
• bright signal on T1-weighted images and can occur in tissue with higher collagen fibers

Answer 2

MAGIC ANGLE ARTIFACT

Question 3

• Appearance
• Bright and sharp signal intensity
• Cause
• tissues are aligned at approximately 55 degrees to the main magnetic field

Answer 3

MAGIC ANGLE ARTIFACTS