{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T00:36:28Z","timestamp":1777509388477,"version":"3.51.4"},"reference-count":24,"publisher":"SAGE Publications","issue":"9","license":[{"start":{"date-parts":[[2025,4,29]],"date-time":"2025-04-29T00:00:00Z","timestamp":1745884800000},"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 Radiol"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Rapid real-time magnetic resonance (MR) sequences enable dynamic articular kinematic assessment. The abduction-external rotation (ABER) position has long been used to characterize glenohumeral pathology.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate a dynamic gradient recall echo (GRE) sequence for ABER-positioned glenohumeral joint kinematic assessment correlating with subjective instability and clinical apprehension testing.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>Symptomatic patients were scanned using a routine MR arthrogram protocol supplemented by an additional \u201cdynamic ABER\u201d GRE technique acquired with the arm abducted and then internally-externally rotated in real time. Dynamic motion of the humeral head between the extremes of motion in the abducted and externally rotated positions was evaluated. The cohort was followed for 3 years.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      A total of 15 dynamic ABER studies in 15 different patients were evaluated by three readers (right: n=9; left: n=6), with a mean age of 30 years (range=19\u201345 years). Good accuracy of the humeral head excursion between the abducted and externally-internally rotated positions (AUC=0.88) was observed as a test for positively detecting instability. An association was detected between clinical instability and mean humeral head excursion as measured by all three readers (\n                      <jats:italic>P<\/jats:italic>\n                      \u2009=\u20090.026), although no association between positive apprehension testing and mean humeral head excursion was detected. There was a trend towards surgery-na\u00efve patients with higher mean humeral head excursion subsequently undergoing surgical management (\n                      <jats:italic>P<\/jats:italic>\n                      =0.088), although this did not reach statistical significance.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Correlation between subjective instability and humeral head translation demonstrated on a dynamic ABER sequence added to MR shoulder arthrograms was observed but without association with clinical apprehension testing.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02841851251335219","type":"journal-article","created":{"date-parts":[[2025,4,29]],"date-time":"2025-04-29T08:33:31Z","timestamp":1745915611000},"page":"964-971","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["\u201cDynamic ABER\u201d sequence using gradient recalled echo radial k-space sampling for kinematic evaluation of humeral excursion related to the glenoid: a feasibility study in 15 patients with a 3-year follow-up"],"prefix":"10.1177","volume":"66","author":[{"given":"John R","family":"Zech","sequence":"first","affiliation":[{"name":"Department of Radiology, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William R","family":"Walter","sequence":"additional","affiliation":[{"name":"Department of Radiology, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eitan","family":"Novogrodsky","sequence":"additional","affiliation":[{"name":"Department of Radiology, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mary","family":"Bruno","sequence":"additional","affiliation":[{"name":"Department of Radiology, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"James","family":"Babb","sequence":"additional","affiliation":[{"name":"Department of Biostatistics, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7609-1146","authenticated-orcid":false,"given":"Christopher John","family":"Burke","sequence":"additional","affiliation":[{"name":"Department of Radiology, New York University, Grossman School of Medicine, New York, NY, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,4,29]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.07.3962"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.4329\/wjr.v3.i9.224"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-022-03996-9"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1177\/03635465231220373"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s002560050425"},{"key":"e_1_3_2_7_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.208.2.9680562"},{"key":"e_1_3_2_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejro.2022.100411"},{"key":"e_1_3_2_9_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-014-3133-x"},{"key":"e_1_3_2_10_2","doi-asserted-by":"publisher","DOI":"10.1055\/a-2005-0206"},{"key":"e_1_3_2_11_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.mric.2012.01.003"},{"key":"e_1_3_2_12_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-012-1441-2"},{"key":"e_1_3_2_13_2","doi-asserted-by":"publisher","DOI":"10.1530\/EOR-23-0029"},{"key":"e_1_3_2_14_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-015-3896-x"},{"key":"e_1_3_2_15_2","doi-asserted-by":"crossref","unstructured":"Walter WR Alizai H Bruno M et al. 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