{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,10]],"date-time":"2026-08-10T18:33:15Z","timestamp":1786386795329,"version":"build-2736575974"},"reference-count":0,"publisher":"Journal of Nepal Medical Association (JNMA)","issue":"281","license":[{"start":{"date-parts":[[2024,12,31]],"date-time":"2024-12-31T00:00:00Z","timestamp":1735603200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Nepal Med Assoc"],"abstract":"<jats:p>Introduction: Volumetric analysis of the paranasal sinuses can help evaluate disease extent, treatment, and sinus surgery outcome. This study aims to determine the baseline volumes of frontal, maxillary, and sphenoid sinuses.Methods: An observational cross-sectional study was conducted in a tertiary care center after obtaining ethical approval (Reference number: 264\/2021). Computerized Tomography Scan head or Computerized Tomography Scan nose\/Paranasal sinus images of patients across all age groups from January to December 2022 were analyzed. Sinus volumes were calculated using Digital Imaging and Communications in Medicine software.Results: The study included 154 patients, median age was 29 years (IQR: 22.75 - 39.25) and 84 (54.5%) were male. The median volume of the maxillary sinus was 14.30 cm\u00b3 (IQR: 10.76 - 18.02), with the right side at 13.82 cm\u00b3 (IQR: 10.34 - 17.39) and the left at 14.62 cm\u00b3 (IQR:11.11 - 18.75). The median volume of the sphenoid sinus was 4.52 cm\u00b3 (IQR:3.02 - 6.03), with the right side at 4.42 cm\u00b3 (IQR: 2.61 - 6.84) and the left at 3.95 cm\u00b3 (IQR: 2.16 - 6.47). The median volume of the frontal sinus was 2.59 cm\u00b3 (IQR:1.42 - 4.59), with the right side at 2.27 cm\u00b3 (IQR:0.94 - 4.12) and the left at 3.04 cm\u00b3 (IQR:1.22 - 5.04).Conclusions: Male population had larger volumes across all types. The maxillary and frontal sinuses had the largest and smallest volumes respectively.<\/jats:p>","DOI":"10.31729\/jnma.8859","type":"journal-article","created":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T09:11:25Z","timestamp":1735722685000},"page":"33-36","source":"Crossref","is-referenced-by-count":2,"title":["Computerized Tomography-Based Volumetric Analysis Of The Maxillary, Sphenoid, And Frontal Sinuses: An Observational Study"],"prefix":"10.31729","volume":"63","author":[{"given":"Ashish","family":"Dhakal","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bikash Lal","family":"Shrestha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Monika","family":"Pokharel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samip","family":"Shrestha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Subindra","family":"Karki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Krishna Sundar","family":"Shrestha","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"16919","published-online":{"date-parts":[[2024,12,31]]},"container-title":["Journal of Nepal Medical Association"],"original-title":[],"link":[{"URL":"https:\/\/www.jnma.com.np\/jnma\/index.php\/jnma\/article\/download\/8859\/5172","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.jnma.com.np\/jnma\/index.php\/jnma\/article\/download\/8859\/5172","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,1,12]],"date-time":"2025-01-12T09:13:38Z","timestamp":1736673218000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.jnma.com.np\/jnma\/index.php\/jnma\/article\/view\/8859"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,12,31]]},"references-count":0,"journal-issue":{"issue":"281","published-online":{"date-parts":[[2025,1,1]]}},"URL":"https:\/\/doi.org\/10.31729\/jnma.8859","relation":{},"ISSN":["1815-672X","0028-2715"],"issn-type":[{"value":"1815-672X","type":"electronic"},{"value":"0028-2715","type":"print"}],"subject":[],"published":{"date-parts":[[2024,12,31]]}}}