{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,6]],"date-time":"2025-11-06T20:03:59Z","timestamp":1762459439638},"reference-count":64,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2017,1,15]],"date-time":"2017-01-15T00:00:00Z","timestamp":1484438400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2017,1,15]],"date-time":"2017-01-15T00:00:00Z","timestamp":1484438400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2017,1,15]],"date-time":"2017-01-15T00:00:00Z","timestamp":1484438400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["wiley.com"],"crossmark-restriction":true},"short-container-title":["Statistics in Medicine"],"published-print":{"date-parts":[[2017,4,30]]},"abstract":"<jats:p>Femoroacetabular impingement (FAI) is a condition in which subtle deformities of the femoral head and acetabulum (hip socket) result in pathological abutment during hip motion. FAI is a common cause of hip pain and can lead to acetabular cartilage damage and osteoarthritis. For some patients with FAI, surgical intervention is indicated, and it can improve quality of life and potentially delay the onset of osteoarthritis. For other patients, however, surgery is contraindicated because significant cartilage damage has already occurred. Unfortunately, current imaging modalities (X\u2010rays and conventional MRI) are subjective and lack the sensitivity to distinguish these two groups reliably. In this paper, we describe the pairing of T2* mapping data (an investigational, objective MRI sequence) and a spatial proportional odds model for surgically obtained ordinal outcomes (Beck's scale of cartilage damage). Each hip in the study is assigned its own spatial dependence parameter, and a Dirichlet process prior distribution permits clustering of said parameters. Using the fitted model, we produce a six\u2010color, patient\u2010specific predictive map of the entire acetabular cartilage. Such maps will facilitate patient education and clinical decision making. Copyright \u00a9 2017 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/sim.7213","type":"journal-article","created":{"date-parts":[[2017,1,15]],"date-time":"2017-01-15T23:16:49Z","timestamp":1484522209000},"page":"1491-1505","update-policy":"http:\/\/dx.doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Disease severity classification using quantitative magnetic resonance imaging data of cartilage in femoroacetabular impingement"],"prefix":"10.1002","volume":"36","author":[{"given":"Lisa L.","family":"Henn","sequence":"first","affiliation":[{"name":"Arbor Research Collaborative for Health  Ann Arbor MI USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"John","family":"Hughes","sequence":"additional","affiliation":[{"name":"Department of Biostatistics and Informatics University of Colorado  Denver Denver CO 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