{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T03:56:08Z","timestamp":1777434968131,"version":"3.51.4"},"reference-count":24,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T00:00:00Z","timestamp":1743033600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T00:00:00Z","timestamp":1743033600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Acta Radiologica Open"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Hip dysplasia (HD) is a prevalent cause of non-traumatic hip pain, which may result in osteoarthritis. Radiological measurements of HD exhibit variability based on reader and imaging modality, why it is important to know the agreement between different measurement methods.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To estimate agreement between measurements of lateral center edge angle (LCEA) and acetabular inclination angle (AIA) made, respectively, on Computed Tomography (CT) scans by humans and radiographs analyzed by an algorithm. To estimate impact of pelvic rotation on agreement between CT and radiographic measurements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>CT measurements were retrospectively extracted from 172 radiology reports. Radiographs were analyzed using an algorithm. Bland-Altman analysis assessed agreement between CT and radiographic measurements. Regression analyses estimated impact of pelvic rotation on inter-modality agreement.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Mean measured bias (95% confidence interval [CI]) between CT and radiographs for LCEA of right\/left hip was 5.53\u00b0 (95% CI: 4.81 to 6.24) and 5.13 (95% CI: 4.43 to 5.83), respectively. Corresponding values for right\/left AIA were 1.08 (95% CI: 0.49 to 1.67) and \u22120.03 (95% CI: \u22120.60 to 0.05). Pelvic rotation affected right LCEA and AIA measurements, with a change in obturator foramen index of, respectively, 0.35 and 0.6 resulting in approximately 2\u00b0 change in values.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>There was a significant difference in agreement of 5\u00b0 between CT and radiographs for the LCEA bilaterally. The difference for the AIA was between 0 and 1\u00b0, probably of little clinical significance. Pelvic rotation slightly affected bias of the right LCEA, suggesting minimal clinical impact of a slightly rotated pelvis.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/20584601251330554","type":"journal-article","created":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T05:17:24Z","timestamp":1743052644000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["A deep learning algorithm for radiographic measurements of the hip versus human CT measurements: An intermodality agreement study"],"prefix":"10.1177","volume":"14","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7076-8483","authenticated-orcid":false,"given":"Christian Greve","family":"Jensen","sequence":"first","affiliation":[{"name":"University of Southern Denmark"},{"name":"University of Southern Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin Schnack","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"University of Southern Denmark"},{"name":"University of Southern Denmark"},{"name":"University of Southern Denmark"},{"name":"Odense University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S\u00f8ren","family":"Overgaard","sequence":"additional","affiliation":[{"name":"Copenhagen University Hospital"},{"name":"University of Copenhagen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claus","family":"Varnum","sequence":"additional","affiliation":[{"name":"University Hospital of Southern Denmark"},{"name":"University of Southern Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6493-3980","authenticated-orcid":false,"given":"Martin Haagen","family":"Haubro","sequence":"additional","affiliation":[{"name":"Odense University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7036-6129","authenticated-orcid":false,"given":"Janni","family":"Jensen","sequence":"additional","affiliation":[{"name":"University of Southern Denmark"},{"name":"Odense University Hospital"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,3,27]]},"reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/2325967121989087"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-016-4815-2"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1051\/sicotj\/2023020"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.12.9360"},{"key":"e_1_3_3_6_2","first-page":"V06180432","article-title":"Yngre patienter med hofteledssmerter","volume":"182","author":"Dippmann CAA-OP","year":"2020","unstructured":"Dippmann CAA-OP, Boesen M, Chrintz H, et al. Yngre patienter med hofteledssmerter. Ugeskrift for L\u00e6ger. 2020; 182: V06180432.","journal-title":"Ugeskrift for L\u00e6ger"},{"key":"e_1_3_3_7_2","first-page":"12","article-title":"A Deep Learning Algorithm for Radiographic Measurements of the Hip in Adults-A Reliability and Agreement Study","author":"Jensen J","year":"2022","unstructured":"Jensen J, Graumann O, Overgaard S, et al. A Deep Learning Algorithm for Radiographic Measurements of the Hip in Adults-A Reliability and Agreement Study. Diagnostics (Basel). 2022; 12.","journal-title":"Diagnostics (Basel)"},{"key":"e_1_3_3_8_2","doi-asserted-by":"crossref","first-page":"4983","DOI":"10.1007\/s00431-023-05164-0","article-title":"A novel approach for screening standard anteroposterior pelvic radiographs in children","volume":"182","author":"Sha J","year":"2023","unstructured":"Sha J, Huang L, Chen Y, et al. A novel approach for screening standard anteroposterior pelvic radiographs in children. Eur J Pediatr 2023; 182: 4983\u20134991.","journal-title":"Eur J Pediatr"},{"key":"e_1_3_3_9_2","doi-asserted-by":"publisher","DOI":"10.1148\/ryai.2020200029"},{"key":"e_1_3_3_10_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jclinepi.2010.03.002"},{"key":"e_1_3_3_11_2","first-page":"39","article-title":"Normal values of the hip joint for the evaluation of X-rays in children and adults","volume":"119","author":"T\u00f6nnis D","year":"1976","unstructured":"T\u00f6nnis D. Normal values of the hip joint for the evaluation of X-rays in children and adults. Clin Orthop Relat Res 1976; 119: 39\u201347.","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_3_3_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/art.38887"},{"key":"e_1_3_3_13_2","doi-asserted-by":"publisher","DOI":"10.1080\/00016470410004094"},{"key":"e_1_3_3_14_2","doi-asserted-by":"publisher","DOI":"10.3390\/biomedinformatics3030046"},{"key":"e_1_3_3_15_2","doi-asserted-by":"publisher","DOI":"10.1177\/096228029900800204"},{"key":"e_1_3_3_16_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11832-016-0768-y"},{"key":"e_1_3_3_17_2","first-page":"392","article-title":"Measurement of lateral acetabular coverage: a comparison between CT and plain radiography","volume":"2","author":"Chadayammuri V","year":"2015","unstructured":"Chadayammuri V, Garabekyan T, Jesse MK, et al. Measurement of lateral acetabular coverage: a comparison between CT and plain radiography. J Hip Preserv Surg 2015; 2: 392\u2013400.","journal-title":"J Hip Preserv Surg"},{"key":"e_1_3_3_18_2","doi-asserted-by":"publisher","DOI":"10.1302\/2633-1462.31.BJO-2021-0130.R1"},{"key":"e_1_3_3_19_2","doi-asserted-by":"publisher","DOI":"10.1007\/s12178-016-9369-0"},{"key":"e_1_3_3_20_2","first-page":"166","article-title":"Radiographic markers of acetabular retroversion: correlation of the cross-over sign, ischial spine sign and posterior wall sign","volume":"76","author":"Werner CM","year":"2010","unstructured":"Werner CM, Copeland CE, Ruckstuhl T, et al. Radiographic markers of acetabular retroversion: correlation of the cross-over sign, ischial spine sign and posterior wall sign. Acta Orthop Belg 2010; 76: 166\u2013173.","journal-title":"Acta Orthop Belg"},{"key":"e_1_3_3_21_2","doi-asserted-by":"crossref","first-page":"34","DOI":"10.25259\/JCIS_82_2023","article-title":"Patient positioning during the radiographic procedure affects the radiological signs of acetabular retroversion - A systematic review","volume":"13","author":"Midtgaard M","year":"2023","unstructured":"Midtgaard M, Pedersen MRV, Christensen NL, et al. Patient positioning during the radiographic procedure affects the radiological signs of acetabular retroversion - A systematic review. J Clin Imaging Sci. 2023; 13: 34.","journal-title":"J Clin Imaging Sci"},{"key":"e_1_3_3_22_2","first-page":"B4450","article-title":"Assessment of adult hip dysplasia and the outcome of surgical treatment","volume":"59","author":"Troelsen A","year":"2012","unstructured":"Troelsen A. Assessment of adult hip dysplasia and the outcome of surgical treatment. Dan Med J 2012; 59: B4450.","journal-title":"Dan Med J"},{"key":"e_1_3_3_23_2","doi-asserted-by":"crossref","first-page":"813","DOI":"10.1007\/s11999-008-0156-0","article-title":"Weightbearing anteroposterior pelvic radiographs are recommended in DDH assessment","volume":"466","author":"Troelsen A","year":"2008","unstructured":"Troelsen A, Jacobsen S, R\u00f8mer L, et al. Weightbearing anteroposterior pelvic radiographs are recommended in DDH assessment. Clin Orthop Relat Res 2008; 466: 813\u2013819.","journal-title":"Clin Orthop Relat Res"},{"key":"e_1_3_3_24_2","doi-asserted-by":"publisher","DOI":"10.1097\/CORR.0000000000000898"},{"key":"e_1_3_3_25_2","doi-asserted-by":"publisher","DOI":"10.1111\/os.12574"}],"container-title":["Acta Radiologica Open"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20584601251330554","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/20584601251330554","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/20584601251330554","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T11:55:12Z","timestamp":1777377312000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/20584601251330554"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,3,27]]},"references-count":24,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2025,4]]}},"alternative-id":["10.1177\/20584601251330554"],"URL":"https:\/\/doi.org\/10.1177\/20584601251330554","relation":{},"ISSN":["2058-4601","2058-4601"],"issn-type":[{"value":"2058-4601","type":"print"},{"value":"2058-4601","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,3,27]]},"article-number":"20584601251330554"}}