{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T23:20:36Z","timestamp":1778800836588,"version":"3.51.4"},"reference-count":26,"publisher":"Georg Thieme Verlag KG","issue":"03","license":[{"start":{"date-parts":[[2022,8,23]],"date-time":"2022-08-23T00:00:00Z","timestamp":1661212800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Indian J Radiol Imaging"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>\n          Aim\u2003The 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.<\/jats:p><jats:p>\n          Settings and Design\u2003Prospective observational study.<\/jats:p><jats:p>\n          Materials and Methods\u2003Thirty-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.<\/jats:p><jats:p>\n          Statistical Analysis\u2003Paired t-test was used to study the difference in contrast\u2013noise ratio (CNR) between two groups. Chi-squared analysis with p-value of \u2264 0.05 was used to test the significant association of different sequences.<\/jats:p><jats:p>\n          Results\u2003Water only images had highest mean CNR (296.35\u2009\u00b1\u2009208.28) for the detection of bone marrow edema\/osteitis. T1W (186.09\u2009\u00b1\u200996.96) and opposed-phase (OP) images (279.22\u2009\u00b1\u2009188.40) had highest mean CNR for the detection of subchondral sclerosis and periarticular fat deposition, respectively. OP images (p-value &lt;0.001) followed by fat-only (FO) images (p-value\u2009=\u20090.001) were superior to T1W sequences in detecting periarticular fat deposition. In-phase (IP) images in detecting subchondral sclerosis and IP and FO images in detecting cortical erosions were comparable to conventional T1W sequences (p-value\u2009&lt;\u20090.001).<\/jats:p><jats:p>\n          Conclusions\u2003T2 Dixon sequences are superior or comparable to conventional MR sequences in detection of sacroiliitis, except ankylosis. Hence, Dixon can be used as a single sequence to replace the multiple sequences used in conventional imaging protocol of acute sacroiliac joints due to higher image quality. It can be used as an additional sequence in case of chronic sacroiliitis to increase the confidence and accuracy of diagnosis.<\/jats:p>","DOI":"10.1055\/s-0042-1753467","type":"journal-article","created":{"date-parts":[[2022,8,23]],"date-time":"2022-08-23T23:13:24Z","timestamp":1661296404000},"page":"314-323","source":"Crossref","is-referenced-by-count":12,"title":["Diagnostic Accuracy of Standalone T2 Dixon Sequence Compared with Conventional MRI in Sacroiliitis"],"prefix":"10.1055","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5888-8119","authenticated-orcid":false,"given":"R.","family":"Athira","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seetharaman","family":"Cannane","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Thushara","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Santhosh","family":"Poyyamoli","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Meena","family":"Nedunchelian","sequence":"additional","affiliation":[{"name":"Department of Radiology, Kovai Medical Center and Hospital, Coimbatore, Tamil Nadu, India"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"194","published-online":{"date-parts":[[2022,8,23]]},"reference":[{"issue":"01","key":"ref1","doi-asserted-by":"crossref","first-page":"126","DOI":"10.1186\/s12891-018-2044-4","article-title":"An unexpected cause of sacroiliitis in a 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