Detection of erosions and fat metaplasia of the sacroiliac joints in patients with suspected sacroiliitis using a chemical shift-encoded sequence (IDEAL-IQ)
European Journal of Radiology, ISSN: 0720-048X, Vol: 158, Page: 110641
2023
- 5Citations
- 10Captures
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Metrics Details
- Citations5
- Citation Indexes5
- CrossRef1
- Captures10
- Readers10
- 10
Article Description
To evaluate the performance of a chemical shift-encoded sequence called IDEAL-IQ for detecting sacroiliac joint (SIJ) erosions and fat metaplasia compared to T1-weighted fast spin echo (T1 FSE) using qualitative and quantitative analysis. Thirty-four patients with suspicion of sacroiliitis who underwent both MRI and CT were included. Each SIJ was divided into four quadrants for analysis. For qualitative analysis, the diagnostic performance of IDEAL-IQ and T1 FSE for erosions were compared by the McNemar test, using CT as the gold standard. Cochran’s Q and McNemar tests were used to determine differences in structural changes detected by different imaging methods. For quantitative analysis, two-sample t test and receiver operating characteristic (ROC) analysis were used for the analysis of histogram parameters of proton density fat fraction (PDFF). Diagnostic sensitivity and accuracy of IDEAL-IQ were greater than T1 FSE for erosions (all P < 0.05). IDEAL-IQ and CT detected more erosions than T1 FSE (all P < 0.05). IDEAL-IQ did not statistically significantly differ from T1 FSE for the detection of fat metaplasia ( P = 0.678). All histogram parameters were different between groups with and without fat metaplasia (all P < 0.05) and could distinguish the two groups (all P < 0.05). PDFF 75th was the most effective histogram parameter. IDEAL-IQ detects SIJ erosions with better accuracy than T1 FSE and is similar to T1 FSE for detection of fat metaplasia, enabling further quantitative analysis of the latter via histogram analysis.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S0720048X22004910; http://dx.doi.org/10.1016/j.ejrad.2022.110641; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85144635771&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/36495683; https://linkinghub.elsevier.com/retrieve/pii/S0720048X22004910; https://dx.doi.org/10.1016/j.ejrad.2022.110641
Elsevier BV
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