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01-09-2017 | Musculoskeletal

MRI assessment of bone marrow oedema in the sacroiliac joints of patients with spondyloarthritis: is the SPAIR T2w technique comparable to STIR?

Authors: Vitor Faeda Dalto, Rodrigo Luppino Assad, Michel Daoud Crema, Paulo Louzada-Junior, Marcello Henrique Nogueira-Barbosa

Published in: European Radiology | Issue 9/2017

Abstract

Objective

To compare short tau inversion-recovery (STIR) with another fat saturation method in the assessment of sacroiliac joint inflammation.

Methods

This prospective cross-sectional study comprised 76 spondyloarthritis (SpA) patients who underwent magnetic resonance imaging of the sacroiliac joints in a 1.5-T scanner, using STIR, spectral attenuated inversion recovery (SPAIR) T2w and spectral presaturation with inversion recovery (SPIR) T1w post-contrast sequences.

Two independent readers (R1 and R2) assessed the images using the Spondyloarthritis Research Consortium of Canada (SPARCC) score. We assessed agreement of the SPARCC scores for SPAIR T2w and STIR with that for T1 SPIR post-contrast (reference standard) using the St. Laurent coefficient. We evaluated each sequence using the concordance correlation coefficient (CCC).

Results

We observed a strong agreement between STIR and SPAIR T2w sequences. Lin’s CCC was 0.94 for R1 and 0.84 for R2 for STIR and 0.94 for R1 and 0.84 for R2 for SPAIR. The interobserver evaluation revealed a good CCC of 0.79 for SPAIR and 0.78 for STIR.

Conclusion

STIR technique and SPAIR T2w sequence showed high agreement in the evaluation of sacroiliac joint subchondral bone marrow oedema in patients with SpA. SPAIR T2w may be an alternative to the STIR sequence for this purpose.

Key points

• There are no studies evaluating which fat saturation technique should be used.

• SPAIR T2w may be an alternative to STIR for sacroiliac joint evaluation.

• The study will lead to changes in guidelines for spondyloarthritis.

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Title: MRI assessment of bone marrow oedema in the sacroiliac joints of patients with spondyloarthritis: is the SPAIR T2w technique comparable to STIR?
Authors: Vitor Faeda Dalto
Rodrigo Luppino Assad
Michel Daoud Crema
Paulo Louzada-Junior
Marcello Henrique Nogueira-Barbosa
Publication date: 01-09-2017
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 9/2017
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-017-4746-7

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MRI assessment of bone marrow oedema in the sacroiliac joints of patients with spondyloarthritis: is the SPAIR T2w technique comparable to STIR?

Abstract

Objective

Methods

Results

Conclusion

Key points

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Objective

Methods

Results

Conclusion

Key points

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