{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,10]],"date-time":"2026-09-10T11:13:24Z","timestamp":1789038804256,"version":"build-2803163510"},"reference-count":34,"publisher":"Oxford University Press (OUP)","issue":"1105","license":[{"start":{"date-parts":[[2019,10,31]],"date-time":"2019-10-31T00:00:00Z","timestamp":1572480000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,1,1]]},"abstract":"<jats:sec>\n                  <jats:title>Objective:<\/jats:title>\n                  <jats:p>To investigate the value of MRI in comparison to single photon emission computed tomography (SPECT)\/CT in patients with painful hip arthroplasties.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Methods:<\/jats:title>\n                  <jats:p>A prospective, multi-institutional study was performed. Therefore, 35 consecutive patients (21 female, 14 male, mean age 61.8 \u00b1 13.3 years) with 37-painful hip arthroplasties were included. A hip surgeon noted the most likely diagnosis based on clinical examination and hip radiographs. Then, MRI and SPECT\/CT of the painful hips were acquired. MRI and SPECT\/CT were assessed for loosening, infection, fracture, tendon pathology and other abnormalities. Final diagnosis and therapy was established by the hip surgeon after integration of MRI and SPECT\/CT results. The value of MRI and SPECT\/CT for diagnosis was assessed with a 3-point scale (1 = unimportant, 2 = helpful, 3 = essential).<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Results:<\/jats:title>\n                  <jats:p>Loosening was observed in 13\/37 arthroplasties (6 shaft only, 6 cup only, 1 combined). Sensitivity, specificity, positive predictive value and negative predictive value for loosening of MRI were 86%\/88%\/60%\/100% and of SPECT\/CT 93%\/97%\/90%\/100%, respectively. MRI and SPECT\/CT diagnosed infection correctly in two of three patients and fractures in two patients, which were missed by X-ray. MRI detected soft tissue abnormalities in 21 patients (6 bursitis, 14 tendon lesions, 1 pseudotumor), of which only 1 tendon abnormality was accurately detected with SPECT\/CT. All 5 arthroplasties with polyethylene wear were correctly diagnosed clinically and with both imaging modalities. MRI and SPECT\/CT were judged as not helpful in 0\/0%, as helpful in 16%\/49% and essential in 84%\/51%.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Conclusion:<\/jats:title>\n                  <jats:p>In patients with painful hip arthroplasty SPECT\/CT is slightly superior to MR in the assessment of loosening. MRI is far superior in the detection of soft tissue, especially tendon pathologies.<\/jats:p>\n               <\/jats:sec>\n               <jats:sec>\n                  <jats:title>Advances in knowledge:<\/jats:title>\n                  <jats:p>To our knowledge this is the first prospective, multiinstitutional study which compares MRI with SPECT\/CT in painful hip arthroplasties. We found that MRI is far superior in the detection of soft tissue pathologies, whereas SPECT\/CT remains slightly superior regarding loosening.<\/jats:p>\n               <\/jats:sec>","DOI":"10.1259\/bjr.20190738","type":"journal-article","created":{"date-parts":[[2019,10,23]],"date-time":"2019-10-23T14:54:52Z","timestamp":1571842492000},"source":"Crossref","is-referenced-by-count":25,"title":["Magnetic resonance imaging (MRI) versus single photon emission computed tomography (SPECT\/CT) in painful total hip arthroplasty: a comparative multi-institutional analysis"],"prefix":"10.1093","volume":"93","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4265-477X","authenticated-orcid":false,"given":"Henrik C.","family":"B\u00e4cker","sequence":"first","affiliation":[{"name":"Radiology and Nuclear Medicine, Cantonal Hospital Lucerne , Lucerne , Switzerland"},{"name":"Orthopedic Surgery and Traumatology, Cantonal Hospital Lucerne , Lucerne , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isabelle","family":"Steurer-Dober","sequence":"additional","affiliation":[{"name":"Radiology, Cantonal Hospital Zug , Baar , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Martin","family":"Beck","sequence":"additional","affiliation":[{"name":"Orthopedic Surgery and Traumatology, Cantonal Hospital Lucerne , Lucerne , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christoph A.","family":"Agten","sequence":"additional","affiliation":[{"name":"Radiology and Nuclear Medicine, Cantonal Hospital Lucerne , Lucerne , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jens","family":"Decking","sequence":"additional","affiliation":[{"name":"Orthopedic Surgery, Cantonal Hospital Lucerne , Sursee , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Richard F.","family":"Herzog","sequence":"additional","affiliation":[{"name":"Orthopedic Surgery, Cantonal Hospital Lucerne , Wolhusen , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jeffrey A.","family":"Geller","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, Columbia University Medical Center\/ Presbyterian Hospital , New York , United States"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ujwal","family":"Bhure","sequence":"additional","affiliation":[{"name":"Radiology and Nuclear Medicine, Cantonal Hospital Lucerne , Lucerne , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Justus E.","family":"Roos","sequence":"additional","affiliation":[{"name":"Radiology and Nuclear Medicine, Cantonal Hospital Lucerne , Lucerne , Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Klaus","family":"Strobel","sequence":"additional","affiliation":[{"name":"Radiology and 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