ARTIFACTS

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Across
  1. 4. Ringing artifact seen at sharp edges in the image.
  2. 6. Signal loss between adjacent slices.
  3. 7. Distortion and signal loss at tissue-metal or tissue-air interfaces.
  4. 9. Blurring or ghosting artifacts from voluntary or involuntary movement.
  5. 10. Increased signal in tendons positioned at 55° to the magnetic field.
  6. 11. Ghosting along the phase encoding direction caused by periodic motion.
  7. 12. Misregistration between fat and water signals causing bright or dark bands at interfaces.
  8. 13. Loss of spatial resolution when different tissues are averaged within a voxel.
  9. 14. Line or band of noise across the image.
Down
  1. 1. Ghosting or signal voids caused by moving blood or CSF.
  2. 2. Interference pattern of dark and light bands.
  3. 3. Severe distortion or signal loss near metallic implants.
  4. 5. Artifact where anatomy outside the field of view wraps into the image.
  5. 8. Artifact due to under-sampling when using parallel imaging techniques.