Age and sex and their influence on the anatomy of the abdominal aorta and its branches

Abstract Background It is not clear how patients’ age and sex influence the anatomy of the aorta and its branches. Objectives To determine the most frequent anatomical patterns of diameter and angulation of the abdominal aorta and its branches and the influence of patients’ sex and age on these patterns. Methods CT scans with intravenous contrast from 157 patients were analyzed. Diameter and angulations of the abdominal aorta and its branches were measured in individuals of both sexes, classified into five age groups: 20 to 30 years, 31 to 40 years, 41 to 50 years, 51 to 60 years, and 61 to 70 years. Eighteen variables were analyzed: 6 arterial origin angles, 9 arterial diameters, rate of diameter enlargement, and patient’s sex and age. RadiAnt 4.2.1 DICOM viewer software was used for measurements. Results The total of 157 CT scans were from 69 men and 88 women. There were statistical differences (p