{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T23:26:44Z","timestamp":1786750004039,"version":"build-2736575974"},"reference-count":11,"publisher":"Georg Thieme Verlag KG","issue":"03","license":[{"start":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T00:00:00Z","timestamp":1786665600000},"content-version":"vor","delay-in-days":44,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int Arch Otorhinolaryngol"],"published-print":{"date-parts":[[2026,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>The aditus ad antrum is a structure located on the posterior wall of the tympanic cavity, connecting the epitympanum and mastoid antrum, playing a role in ventilating the mastoid antrum and air cells. However, there is limited in-depth research on this structure.<\/jats:p>\n                  <jats:p>To study the anatomy and morphology of the aditus ad antrum and evaluate its correlation with mastoid pneumatization using 3D MPR-reconstructed CT scans.<\/jats:p>\n                  <jats:p>This cross-sectional descriptive study was conducted using 101 normal temporal bone CT scans (190 ears) from individuals aged 16 years or older in Vietnam. The aditus was examined in three planes (axial, coronal, and sagittal) using 3D MPR reconstruction.<\/jats:p>\n                  <jats:p>The aditus ad antrum morphology was classified into four groups, with group 2 being the most prevalent (48.42%). There was no correlation between aditus morphology and gender or ear side. Additionally, no relationship was found between mastoid pneumatization and aditus morphology. With increasing mastoid pneumatization, aditus ad antrum dimensions change. In individuals with two normal ears (N\u2009=\u200989), bilateral symmetry in aditus morphology was observed in 45% of cases. No significant differences were found in aditus dimensions between ears. The mean transverse diameter of the aditus in males was significantly larger than in females (p\u2009&lt;\u20090.05). The anterior-posterior diameter of the right ear was significantly greater than the left in the same individual (p\u2009&lt;\u20090.05).<\/jats:p>\n                  <jats:p>The aditus ad antrum may differ between the left and right ears in normal individuals and is not associated with mastoid pneumatization.<\/jats:p>","DOI":"10.1055\/a-2825-9870","type":"journal-article","created":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T22:30:46Z","timestamp":1786746646000},"page":"001-007","source":"Crossref","is-referenced-by-count":0,"title":["Aditus ad Antrum on Normal Temporal Bone CT Scan"],"prefix":"10.1055","volume":"30","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-5710-9289","authenticated-orcid":false,"given":"Son","family":"Bao Nguyen","sequence":"additional","affiliation":[{"name":"University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chat Ngoc","family":"Pham","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology, University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vinh Thanh","family":"Nguyen","sequence":"additional","affiliation":[{"name":"Ear Nose Throat Hospital, Ho Chi Minh City, Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3189-8039","authenticated-orcid":false,"given":"Minh Thieu","family":"Quach","sequence":"additional","affiliation":[{"name":"University of Medicine and Pharmacy, Ho Chi Minh City, Vietnam"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"194","published-online":{"date-parts":[[2026,8,14]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","DOI":"10.1007\/978-3-030-15363-2","volume-title":"Comprehensive and Clinical Anatomy of the Middle Ear","author":"S Mansour","year":"2019","edition":"2nd ed."},{"issue":"02","key":"ref2","doi-asserted-by":"publisher","first-page":"331","DOI":"10.1177\/0194599814559698","article-title":"Patency of the aditus ad antrum in tubotympanic chronic suppurative otitis media","volume":"152","author":"M Bahgat","year":"2015","journal-title":"Otolaryngol Head Neck Surg"},{"issue":"05","key":"ref3","doi-asserted-by":"publisher","first-page":"1028","DOI":"10.1002\/lary.20841","article-title":"Selective epitympanic dysventilation syndrome","volume":"120","author":"D Marchioni","year":"2010","journal-title":"Laryngoscope"},{"issue":"03","key":"ref4","doi-asserted-by":"publisher","first-page":"121","DOI":"10.5005\/jp-journals-10003-1207","article-title":"Clinical and Radiological Predictability of Aditus Patency in Mucosal COM with Sclerosed Mastoid: An Analytical Study Original article","volume":"7","author":"A Varma","year":"2015","journal-title":"Otorhinolaryngol Clin Int J"},{"issue":"02","key":"ref5","doi-asserted-by":"publisher","first-page":"142","DOI":"10.1007\/s12070-011-0403-7","article-title":"Trans-aditus approach: an alternative technique for cochlear implantation","volume":"64","author":"A Al Sanosi","year":"2012","journal-title":"Indian J Otolaryngol Head Neck Surg"},{"issue":"16","key":"ref7","first-page":"747","article-title":"[Normal anatomy of aditus of antrum and antrum on high-resolution CT and three-dimensional reconstruction]","volume":"26","author":"X Long","year":"2012","journal-title":"Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi"},{"key":"ref8","first-page":"042041","volume-title":"Determination of variations in temporal bone anatomical distances in CSOM and non-CSOM patients using computed tomography and intraoperative patient analysis","author":"R Restuti","year":"2018"},{"issue":"10","key":"ref9","doi-asserted-by":"publisher","first-page":"990","DOI":"10.2174\/1573405615666190327110216","article-title":"Comparison of the Aditus ad Antrum Diameter on CT between Patients with Chronic Otitis Media and Healthy Individuals","volume":"15","author":"E G\u00fcndo\u011fdu","year":"2019","journal-title":"Curr Med Imaging Rev"},{"issue":"11","key":"ref10","doi-asserted-by":"publisher","first-page":"1110","DOI":"10.1016\/j.crad.2007.04.019","article-title":"Classification of temporal bone pneumatization based on sigmoid sinus using computed tomography","volume":"62","author":"S J Han","year":"2007","journal-title":"Clin Radiol"},{"issue":"09","key":"ref11","doi-asserted-by":"publisher","first-page":"1116","DOI":"10.1007\/s11547-023-01677-8","article-title":"Temporal bone CT-based anatomical parameters associated with the development of cholesteatoma","volume":"128","author":"M Cavaliere","year":"2023","journal-title":"Radiol Med (Torino)"},{"issue":"00","key":"ref12","doi-asserted-by":"publisher","DOI":"10.5603\/fm.100190","article-title":"Middle ear morphology and mastoid pneumatization: a computed tomography study","volume":"0","author":"B A Fern\u00e1ndez-Reyes","year":"2024","journal-title":"Folia Morphol (Warsz)"}],"container-title":["International Archives of Otorhinolaryngology"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/www.thieme-connect.de\/products\/ejournals\/pdf\/10.1055\/a-2825-9870.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,8,14]],"date-time":"2026-08-14T22:30:56Z","timestamp":1786746656000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.thieme-connect.de\/DOI\/DOI?10.1055\/a-2825-9870"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,7]]},"references-count":11,"journal-issue":{"issue":"03","published-online":{"date-parts":[[2026,8,14]]},"published-print":{"date-parts":[[2026,7]]}},"alternative-id":["a28259870"],"URL":"https:\/\/doi.org\/10.1055\/a-2825-9870","archive":["Portico","CLOCKSS"],"relation":{},"ISSN":["1809-9777","1809-4864"],"issn-type":[{"value":"1809-9777","type":"print"},{"value":"1809-4864","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,7]]}}}