{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T02:17:14Z","timestamp":1787019434131,"version":"build-2736575974"},"reference-count":18,"publisher":"SAGE Publications","license":[{"start":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T00:00:00Z","timestamp":1783296000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"},{"start":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T00:00:00Z","timestamp":1783296000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"funder":[{"name":"Capital\u2032s Funds for Health Improvement and Research","award":["ShouFa2026-2G-40812"],"award-info":[{"award-number":["ShouFa2026-2G-40812"]}]},{"name":"Research and Development Fund of Peking University People\u2019s Hospital","award":["RS-2025-03"],"award-info":[{"award-number":["RS-2025-03"]}]},{"name":"Beijing Natural Science Foundation","award":["7232182"],"award-info":[{"award-number":["7232182"]}]},{"name":"Peking University Clinical Scientist Training Program","award":["BMU2024PYJH016"],"award-info":[{"award-number":["BMU2024PYJH016"]}]},{"name":"China Association for Science and Technology: Innovative Service for Management of Scoliosis in Tibetan Adolescents"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Global Spine Journal"],"abstract":"<jats:sec>\n                    <jats:title>Study design<\/jats:title>\n                    <jats:p>A prospective study.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>This study aimed to evaluate the reliability and validity of ultrasound angles, and to explore the impact of body mass index (BMI) and scoliosis status on the accuracy of ultrasound measurements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>A total of 94 subjects were enrolled in this study and subsequently underwent both X-ray and ultrasound examinations. Two orthopedic surgeons independently measured the radiographic Cobb angle and the ultrasound angle to evaluate the intra- and interobserver reliability of ultrasound angles. Based on apical vertebra location, BMI, and scoliosis status, subjects were stratified into clinically relevant subgroups. Linear regression analyses and Bland-Altman plots were employed to assess the accuracy of the ultrasound measurements.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Ultrasound angles demonstrated excellent intra- and interobserver reliability (intraclass correlation coefficients, ICCs ranging from 0.939 to 0.99), and manual ultrasound angle showed better correlation with the radiographic Cobb angle than the automatic ultrasound angle. The lowest R\n                      <jats:sup>2<\/jats:sup>\n                      of 0.425 was observed for the automatic ultrasound angle in the overweight group, while manual ultrasound angle maintained comparable correlation with the Cobb angle across different BMI subgroups. Furthermore, a higher correlation was found between ultrasound angles and the Cobb angle in the scoliosis group compared to the non-scoliosis group.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study showed that ultrasound angles were reliable and valid. Manual measurements showed superior performance and should be prioritized. When using ultrasound angles to assess spinal curvature severity, the influence of BMI and scoliosis status must be considered.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/21925682261466587","type":"journal-article","created":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T07:22:01Z","timestamp":1783322521000},"update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Radiation-free Assessment of Scoliosis: A Reliability and Validity Study for Ultrasound Angles"],"prefix":"10.1177","author":[{"ORCID":"https:\/\/orcid.org\/0009-0006-2706-9675","authenticated-orcid":false,"given":"Shuaiqi","family":"Zhu","sequence":"first","affiliation":[{"name":"Peking University People\u2019s Hospital"},{"name":"Peking University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingying","family":"Qiu","sequence":"additional","affiliation":[{"name":"Rehabilitation therapy center, Beijing Xicheng District Zhanlanlu Hospital"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenfei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Peking University People\u2019s Hospital"},{"name":"Peking University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinying","family":"Zhang","sequence":"additional","affiliation":[{"name":"Beijing Institute of Technology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yongping","family":"Zheng","sequence":"additional","affiliation":[{"name":"The Hong Kong Polytechnic University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haiying","family":"Liu","sequence":"additional","affiliation":[{"name":"Peking University People\u2019s Hospital"},{"name":"Peking University"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3702-4714","authenticated-orcid":false,"given":"Shuai","family":"Xu","sequence":"additional","affiliation":[{"name":"Peking University People\u2019s Hospital"},{"name":"Peking University"},{"name":"Department of Orthopedics, Beijing Tsinghua Changgung Hospital, Beijing, P.R. China."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,7,6]]},"reference":[{"key":"e_1_3_5_2_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.f2508"},{"key":"e_1_3_5_3_2","doi-asserted-by":"publisher","DOI":"10.1097\/brs.0000000000005377"},{"key":"e_1_3_5_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-023-07651-2"},{"key":"e_1_3_5_5_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-020-06573-7"},{"key":"e_1_3_5_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-020-06652-9"},{"key":"e_1_3_5_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jot.2021.04.007"},{"key":"e_1_3_5_8_2","doi-asserted-by":"publisher","DOI":"10.1038\/s41598-025-18538-1"},{"key":"e_1_3_5_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultsonch.2025.107391"},{"key":"e_1_3_5_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-025-09007-4"},{"key":"e_1_3_5_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/tmi.2022.3143953"},{"key":"e_1_3_5_12_2","doi-asserted-by":"publisher","DOI":"10.1109\/tuffc.2020.3047622"},{"key":"e_1_3_5_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.spinee.2017.10.012"},{"key":"e_1_3_5_14_2","doi-asserted-by":"publisher","DOI":"10.3390\/s21082858"},{"key":"e_1_3_5_15_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00586-024-08445-w"},{"key":"e_1_3_5_16_2","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0335472"},{"key":"e_1_3_5_17_2","first-page":"1220","article-title":"Ultrasound curve angle is more accurate than spinous process angle and can reduce unnecessary radiography in school scoliosis screening: a prospective and validation study in 507 adolescent females","volume":"107","author":"Kwan CK","year":"2025","unstructured":"Kwan CK, Yang KG, Hung AL, et al. Ultrasound curve angle is more accurate than spinous process angle and can reduce unnecessary radiography in school scoliosis screening: a prospective and validation study in 507 adolescent females. Bone&Joint. 2025;107-B:1220-1228. 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