{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T05:28:23Z","timestamp":1786685303716,"version":"build-2736575974"},"reference-count":20,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,13]],"date-time":"2026-08-13T00:00:00Z","timestamp":1786579200000},"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":["J of Clinical Ultrasound"],"abstract":"ABSTRACT<\/jats:title>\n \n Objective<\/jats:title>\n \n To establish gestational age (GA)\u2010specific reference ranges for fetal parieto\u2010occipital sulcus (POS) depth and angle using the transcranial high axial plane at 20\u201330\n +6<\/jats:sup>\n \u2009weeks of gestation.\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n This cross\u2010sectional study enrolled 357 normal singleton fetuses. Five cases were excluded owing to suboptimal image quality caused by maternal obesity, unfavorable fetal presentation, anterior placenta and oligohydramnios. Finally, 352 fetuses were included for analysis, yielding a POS visualization rate of 98.6% (352\/357). Gestational age (GA) was established based on first\u2010trimester crown\u2010rump length (CRL) measurements. The morphology of the POS was assessed, and its depth and angle were measured to establish relevant reference ranges. Intra\u2010 and inter\u2010observer reproducibility was evaluated.<\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n POS depth showed a linear increase with advancing gestational age (GA), whereas POS angle presented a linear decrease. The regression equations were: POS depth (mm)\u2009=\u2009\u221216.41\u2009+\u20090.85\u2009\u00d7\u2009GA (\n R<\/jats:italic>\n 2<\/jats:sup>\n \u2009=\u20090.853,\n p<\/jats:italic>\n \u2009<\u20090.01) and POS angle (\u00b0)\u2009=\u2009389.06\u201311.82\u2009\u00d7\u2009GA (\n R<\/jats:italic>\n 2<\/jats:sup>\n \u2009=\u20090.855,\n p<\/jats:italic>\n \u2009<\u20090.01). Reference ranges for POS depth and angle were established. Excellent reproducibility was observed, with all intraclass correlation coefficients (ICCs)\u2009>\u20090.850, and more than 95% of data points lying within the 95% limits of agreement (LoA) on Bland\u2013Altman plots.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusion<\/jats:title>\n \n Quantitative measurements of POS depth and angle on the transcranial high axial plane offer a simple, feasible, and reproducible complementary method to evaluate fetal cerebral cortical development during 20\u201330\n +6<\/jats:sup>\n weeks of gestation.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1002\/jcu.70376","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T05:05:06Z","timestamp":1786683906000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Reference Ranges for Fetal Parieto\u2010Occipital Sulcus Depth and Angle Using the Transcranial High Axial Plane: A Cross\u2010Sectional Study at 20\u201330\n +6<\/sup>\n \u2009Weeks of Gestation"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-1895-8225","authenticated-orcid":false,"given":"Zhongqiang","family":"Zhu","sequence":"first","affiliation":[{"name":"Ultrasound Department of Shangrao People's Hospital Shangrao Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ling","family":"Ren","sequence":"additional","affiliation":[{"name":"Department of Ultrasound Medicine The First Affiliated Hospital of Gannan Medical University Ganzhou Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Le","family":"Yang","sequence":"additional","affiliation":[{"name":"Ultrasound Department of Shangrao People's Hospital Shangrao Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meihui","family":"Liu","sequence":"additional","affiliation":[{"name":"Ultrasound Department of Shangrao People's Hospital Shangrao Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ya","family":"Wang","sequence":"additional","affiliation":[{"name":"Ultrasound Department of Shangrao People's Hospital Shangrao Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhirong","family":"Li","sequence":"additional","affiliation":[{"name":"Ultrasound Department of Shangrao People's Hospital Shangrao Jiangxi Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,13]]},"reference":[{"key":"e_1_2_13_2_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.7660"},{"key":"e_1_2_13_3_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00404\u2010021\u201006334\u2010x"},{"key":"e_1_2_13_4_1","doi-asserted-by":"publisher","DOI":"10.3390\/diagnostics11060916"},{"key":"e_1_2_13_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhr053"},{"key":"e_1_2_13_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejpn.2021.08.001"},{"key":"e_1_2_13_7_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41598\u2010020\u201071535\u20104"},{"key":"e_1_2_13_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejogrb.2024.09.032"},{"key":"e_1_2_13_9_1","doi-asserted-by":"publisher","DOI":"10.3390\/biomedicines12071397"},{"key":"e_1_2_13_10_1","doi-asserted-by":"publisher","DOI":"10.1515\/jpm\u20102022\u20100642"},{"key":"e_1_2_13_11_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.23382"},{"key":"e_1_2_13_12_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41586\u2010023\u201006630\u2010z"},{"key":"e_1_2_13_13_1","doi-asserted-by":"publisher","DOI":"10.3171\/2012.9.PEDS1245"},{"key":"e_1_2_13_14_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.7705"},{"key":"e_1_2_13_15_1","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.23308"},{"key":"e_1_2_13_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/joa.13489"},{"key":"e_1_2_13_17_1","doi-asserted-by":"publisher","DOI":"10.12809\/hkmj154716"},{"key":"e_1_2_13_18_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.22054"},{"key":"e_1_2_13_19_1","doi-asserted-by":"publisher","DOI":"10.1515\/jpm\u20102022\u20100538"},{"key":"e_1_2_13_20_1","doi-asserted-by":"publisher","DOI":"10.1093\/cercor\/bhaa255"},{"key":"e_1_2_13_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/uog.24909"}],"container-title":["Journal of Clinical Ultrasound"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.70376","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jcu.70376","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jcu.70376","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T05:05:08Z","timestamp":1786683908000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jcu.70376"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,8,13]]},"references-count":20,"alternative-id":["10.1002\/jcu.70376"],"URL":"https:\/\/doi.org\/10.1002\/jcu.70376","archive":["Portico"],"relation":{},"ISSN":["0091-2751","1097-0096"],"issn-type":[{"value":"0091-2751","type":"print"},{"value":"1097-0096","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,8,13]]},"assertion":[{"value":"2026-04-05","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-06","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-08-13","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}],"article-number":"jcu.70376"}}