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MRI Forum: MRI artifact
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Daniel Cronk

Mon. 16 Jun.14,
20:25
MRI artifact
Hi. I have recently been experiencing an artifact on a STIR sequence (GE Signa HDxT 3.0T) using a HD CTL spine Coil. I'm am not fully understanding what could be happening here. One MRI technologist thought it was a corduroy artifact due to RF leak, but I'm not 100% sure there was RF leak, at least from the door, as it was closed completely.
Daniel Cronk

Mon. 16 Jun.14,
20:26
 http://globe-trekking.com/photos/STIR_11.jpg
Daniel Cronk

Mon. 16 Jun.14,
20:26
 http://tinyurl.com/q3e542s
Steven Ford

Tue. 5 Aug.14,
19:57
 No it is not an RF leak artifact. That would appear different. I would guess that there was one instance of motion. Note that the artifact is mostly on the high contrast areas (white against black) where the patient can move the most.

Also it may be that your acquisition matrix was a little on the low side, which would lead to larger pixel-y appearance that is more apparent when there's motion.
 
 

Steven Ford
Professional Imaging Services, Inc.
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