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Erschienen in: International Journal of Computer Assisted Radiology and Surgery 10/2020

30.06.2020 | Original Article

A study of MRI-based radiomics biomarkers for sacroiliitis and spondyloarthritis

verfasst von: Ariane Priscilla Magalhães Tenório, Matheus Calil Faleiros, José Raniery Ferreira Junior, Vitor Faeda Dalto, Rodrigo Luppino Assad, Paulo Louzada-Junior, Hiroyuki Yoshida, Marcello Henrique Nogueira-Barbosa, Paulo Mazzoncini de Azevedo-Marques

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 10/2020

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Abstract

Purpose

To evaluate the performance of texture-based biomarkers by radiomic analysis using magnetic resonance imaging (MRI) of patients with sacroiliitis secondary to spondyloarthritis (SpA). Relevance: The determination of sacroiliac joints inflammatory activity supports the drug management in these diseases.

Methods

Sacroiliac joints (SIJ) MRI examinations of 47 patients were evaluated. Thirty-seven patients had SpA diagnoses (27 axial SpA and ten peripheral SpA) which was established previously after clinical and laboratory follow-up. To perform the analysis, the SIJ MRI was first segmented and warped. Second, radiomics biomarkers were extracted from the warped MRI images for associative analysis with sacroiliitis and the SpA subtypes. Finally, statistical and machine learning methods were applied to assess the associations of the radiomics texture-based biomarkers with clinical outcomes.

Results

All diagnostic performances obtained with individual or combined biomarkers reached areas under the receiver operating characteristic curves ≥ 0.80 regarding SpA related sacroiliitis and and SpA subtypes classification. Radiomics texture-based analysis showed significant differences between the positive and negative SpA groups and differentiated the axial and peripheral subtypes (P < 0.001). In addition, the radiomics analysis was also able to correctly identify the disease even in the absence of active inflammation.

Conclusion

We concluded that the application of the radiomic approach constitutes a potential noninvasive tool to aid the diagnosis of sacroiliitis and for SpA subclassifications based on MRI of sacroiliac joints.

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Metadaten
Titel
A study of MRI-based radiomics biomarkers for sacroiliitis and spondyloarthritis
verfasst von
Ariane Priscilla Magalhães Tenório
Matheus Calil Faleiros
José Raniery Ferreira Junior
Vitor Faeda Dalto
Rodrigo Luppino Assad
Paulo Louzada-Junior
Hiroyuki Yoshida
Marcello Henrique Nogueira-Barbosa
Paulo Mazzoncini de Azevedo-Marques
Publikationsdatum
30.06.2020
Verlag
Springer International Publishing
Erschienen in
International Journal of Computer Assisted Radiology and Surgery / Ausgabe 10/2020
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI
https://doi.org/10.1007/s11548-020-02219-7

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