Reference Diameters of the Abdominal Aorta and Common Lliac Arteries in Ethiopian Adults on Abdominal CT: A Facility-based Cross-sectional Study

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Addis Abeba University


Background: Aortic and common iliac artery diameters are best indicators for diagnosis of aortic ectasia and aneurysm, and appropriate selection of stent graft size for endovascular procedures. Currently, there is lack of evidence regarding abdominal aorta and common iliac artery diameter in Ethiopian adults. Objective: To assess mean diameter and associated factors of abdominal aorta and common iliac artery diameters on abdominal CT scans of Ethiopian adults visiting Tikur Anbessa Specialized Hospital, Addis Ababa, Ethiopia. Methods: Hospital-based cross-sectional study was conducted. Convenience nonprobability sampling method was employed. Data were collected from consecutive eligible adults who came for abdominal CT scans in study period, using interviewer-administered structured questionnaires. The data was cleaned and analysed using SPSS version 22. Student t-test and Pearson correlation were used for statistical analysis. Results: There were 136 study participants and 50 (40.4%) of participants were males and 81(59.6%) were females. Age of participants ranged from 23 up to 77 with mean age of 48.5 ± 13 years. The mean transverse diameter of the aorta at aortic hiatus (T12) level was 2.30 ± 0.25cm in males and 2.03 ± 0.19 m in females. The mean transverse diameter of suprarenal aorta was 2.04 ± 0.21cm in males and 1.83 ± 0.21 cm in females. Those individuals of male sex, increased age, larger BSA, and alcohol consumption were having larger diameters. Conclusion: In this study, Diameter of aorta and common iliac artery was significantly associated with age, sex, BSA, and alcohol consumption.



Abdominal aorta, Common Iliac Arteries, Ethiopia