{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,24]],"date-time":"2026-08-24T20:21:08Z","timestamp":1787602868925,"version":"build-2736575974"},"reference-count":16,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T00:00:00Z","timestamp":1786320000000},"content-version":"vor","delay-in-days":9,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,1]],"date-time":"2026-08-01T00:00:00Z","timestamp":1785542400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Echocardiography"],"published-print":{"date-parts":[[2026,8]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>PURPOSE<\/jats:title>\n                    <jats:p>To determine whether right ventricular (RV) longitudinal functional indices measured from standard and RV\u2010focused apical four\u2010chamber (A4C) views are interchangeable at the individual level.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>METHODS<\/jats:title>\n                    <jats:p>We conducted a secondary cross\u2010sectional agreement analysis of anonymized echocardiographic data acquired in Dalian, China, from January 2021\u2013January 2022. The primary analysis included 115 of 120 screened adults after prespecified eligibility and audit\u2010stage exclusions; sensitivity analyses retained all 120. Paired measurements comprised tricuspid annular plane systolic excursion (TAPSE), lateral tricuspid annular S\u2032, e\u2032, and a\u2032 velocities, and tissue motion annular displacement (TMAD)\u2010derived indices. Observer reproducibility was evaluated in 30 cases.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>RESULTS<\/jats:title>\n                    <jats:p>\n                      TAPSE was similar between standard and RV\u2010focused views (22.4\u00a0\u00b1\u00a03.6\u00a0vs 22.4\u00a0\u00b1\u00a03.2\u00a0mm; mean difference, \u22120.09\u00a0mm;\n                      <jats:italic>p<\/jats:italic>\n                      \u00a0=\u00a00.805), and other group\u2010level differences were small. Individual agreement was limited: intraclass correlation coefficients (ICCs) were 0.40 for TAPSE, 0.45\u20130.65 for tissue Doppler velocities, and 0.39\u20130.68 for TMAD indices. Sensitivity\u2010analysis ICCs remained poor to moderate (0.21\u20130.65). Intraobserver and interobserver ICCs in the 30\u2010case subset were 0.97\u20131.00 and 0.94\u20130.99, respectively.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>CONCLUSION<\/jats:title>\n                    <jats:p>Standard and RV\u2010focused A4C views produced similar group means but only poor\u2010to\u2010moderate individual agreement. The acquisition view should be kept consistent and documented in serial reports and research datasets.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/echo.70585","type":"journal-article","created":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T12:11:26Z","timestamp":1786363886000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Agreement Between Standard and Right Ventricular\u2010Focused Apical Four\u2010Chamber Views for Right Ventricular Longitudinal Functional Indices: A Within\u2010Participant Agreement Study"],"prefix":"10.1111","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-0965-590X","authenticated-orcid":false,"given":"Fei\u2010Yi","family":"Sun","sequence":"first","affiliation":[{"name":"Health Management Center Central Hospital of Dalian University of Technology  Dalian China"},{"name":"Department of Medical Ultrasound Central Hospital of Dalian University of Technology  Dalian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ti","family":"Zhao","sequence":"additional","affiliation":[{"name":"Health Management Center Central Hospital of Dalian University of Technology  Dalian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jia\u2010Qi","family":"Shen","sequence":"additional","affiliation":[{"name":"Health Management Center Central Hospital of Dalian University of Technology  Dalian China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiao\u2010Fang","family":"Pan","sequence":"additional","affiliation":[{"name":"Health Management Center Central Hospital of Dalian University of Technology  Dalian China"},{"name":"Department of Medical Ultrasound Central Hospital of Dalian University of Technology  Dalian 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