Hello Cat, I am a recently retired ARRT registered MRI technologist. A STIR MRI is a specific sequence that is performed as a part of all MRI protocols on any organ, tissue, bone in the body. The purpose of this sequence is to further characterize abnormal pathology, seen on other imaging studies such as CT or PET. It is particularly beneficial in studies of bones and surrounding soft tissues. Abnormalities will appear typically appear bright in contrast to other structures in the are being evaluated. Bone abnormalities can be characterized such as old or acute new fractures, infections that have invaded bones, and possibly malignant bony tumors, all depending on the intensity of this signal. Involvement of the surrounding tissues is also bright compared to adjacent tissues.
The STIR sequence is typically scanned in at least 2 positions in the body part ordered and is a part of a detailed protocol including others types of sequences that are meant to complement each other and provide assistance in diagnosis.
I know this is long! I hope it was helpful. There is SO much involved in explaining MRI and I could ramble on forever.

Best wishes for your future
Julia H

Yes great information!!!

Very informative answer.

Thank you Julie some of us may have had this and not known it

Thank you Julia. I learned something new. @A MyMyelomaTeam Member check out this post.
Paula 🌹

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