MRI Case 28

What artifact is shown and how can it be fixed?

MOTION

  • Can affect a few sequences or the entire study
  • Phase-encoding direction regardless of the direction of the motion
  • May lead to misregistration on subtraction images
  • Fix:
    • Counsel patient on the importance of holding still
    • Ensure patient is comfortable
    • Sedation if necessary for claustrophobia¬†

Related Radiology Article: Harvey JA, Hendrick RE, Coll JM, Nicholson BT, Burkholder BT, Cohen MA. Breast MR imaging artifacts: how to recognize and fix them. Radiographics. 2007 Oct;27(suppl_1):S131-45.