Diagnostic Accuracy of Standalone T2 Dixon Sequence Compared with Conventional MRI in Sacroiliitis

Autor: R. Athira, Seetharaman Cannane, R. Thushara, Santhosh Poyyamoli, Meena Nedunchelian
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Indian Journal of Radiology and Imaging, Vol 32, Iss 03, Pp 314-323 (2022)
Druh dokumentu: article
ISSN: 0971-3026
1998-3808
DOI: 10.1055/s-0042-1753467
Popis: Aim The aim of this article was to assess the profile of T2-weighted (T2W) multipoint Dixon sequence and conventional sequences in magnetic resonance imaging (MRI) of sacroiliac joints for the diagnosis of active and chronic sacroiliitis. Settings and Design Prospective observational study. Materials and Methods Thirty-seven patients with sacroiliitis underwent MRI with conventional coronal oblique short tau inversion recovery, T1W sequences, and T2W multipoint Dixon sequences. T1 fat-saturated postcontrast sequences were added in active cases. Comparisons were made between conventional and T2 Dixon sequences both quantitatively and qualitatively. Statistical Analysis Paired t-test was used to study the difference in contrast–noise ratio (CNR) between two groups. Chi-squared analysis with p-value of ≤ 0.05 was used to test the significant association of different sequences. Results Water only images had highest mean CNR (296.35 ± 208.28) for the detection of bone marrow edema/osteitis. T1W (186.09 ± 96.96) and opposed-phase (OP) images (279.22 ± 188.40) had highest mean CNR for the detection of subchondral sclerosis and periarticular fat deposition, respectively. OP images (p-value
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