2026-10-19T00:27:28Zhttps://ebyu-rdlopen.rawdatalibrary.net/oai/request

oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/100392026-10-18T21:14:17Zopenairedrivercom_ebyu_10000col_ebyu_10001

Anatomical Variations in Major Abdominal Aortic Branches and Sex-Related Differences: A Large-Scale Analysis of 1174 PatientsTokur, OguzhanBingol, Korayabdominal aortaanatomical variationscomputed tomography angiographysex-related differencesAdultAgedAged, 80 and overAnatomic VariationAorta, AbdominalCeliac ArteryFemaleHumansMaleMesenteric Artery, InferiorMesenteric Artery, SuperiorMiddle AgedMultidetector Computed TomographyPrevalenceRetrospective StudiesSex Factorsanatomical variationcomputed tomographic angiographydiagnostic imaginghumaninferior mesenteric arteryproceduresretrospective studysex factorsuperior mesenteric arteryvery elderlyBackground: This study aims to evaluate the prevalence, spectrum, and coexistence of anatomical variations in the major branches of the abdominal aorta using Multidetector Computed Tomography (MDCT) angiography, with a specific emphasis on analyzing sex-related differences in a large-scale cohort. Methods: A retrospective analysis was conducted on 1174 patients (63.8% male, 36.2% female; mean age 60.54) who underwent abdominal CT angiography between January 2023 and June 2024. Images were acquired using a 128-slice MDCT scanner and reconstructed for detailed vascular assessment. Statistical comparisons between genders were performed using Chi-square and Fisher–Freeman–Halton tests, with p < 0.05 considered significant. Results: The celiac trunk (93.3%), superior mesenteric artery (SMA) (97.1%), and inferior mesenteric artery (IMA) (98.5%) predominantly showed classical patterns. However, significant sex-related differences were identified. Females exhibited significantly higher rates of classical patterns for the celiac trunk (96.2% vs. 91.7%), IMA (99.1% vs. 98.1%), right hepatic artery (RHA) (91.5% vs. 82.6%), and left hepatic artery (LHA) (95.8% vs. 85.4%). Conversely, males showed a higher prevalence of complex variations, including replaced/accessory hepatic arteries and the absence of the common hepatic artery. The number of right and left renal arteries was similar between sexes and did not show a significant difference, while horseshoe kidney was detected only in males. Conclusions: Abdominal vascular structures adhere to classical anatomy more frequently in females, while males exhibit greater morphological variability. These findings emphasize the necessity of gender-specific preoperative vascular mapping to optimize surgical outcomes and reduce morbidity. © 2026 by the authors.Multidisciplinary Digital Publishing Institute (MDPI)2026Articlehttps://rdlopen.rawdatalibrary.net/r/ebyu/10039https://doi.org/10.3390/tomography120400512379-1381enTomographyinfo:eu-repo/semantics/openAccessinfo:eu-repo/semantics/articlehttps://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/10039