Age estimation from quantitative evaluation of abdominal aorta -Utilizing postmortem CT-

Aging estimation of a corpse is an important clue for personal identification. Conventional qualitative age estimation methods based on the naked eye observation of hard tissues are susceptible to different evaluators. Recently, methods of age estimation using PMCT have also been investigated. Our objective was to obtain a quantitative age estimation method that is less affected by the experience and knowledge of the evaluator. We investigated the usefulness of a method for estimating age by measuring the circumference of the abdominal aorta using PMCT images. With 817 cases of PMCT scans acquired at our division between 2015 and 2019 as the subject, we measured the outer circumference of the abdominal aorta using a diagnostic medicine imaging workstation. As a result, an age estimation equation was calculated: male age = -21.67 + 1.23 x circumference diameter; female age =-16.37 + 1.28 x circumference diameter, and a graph with 70% confidence interval was drawn. Quantitative evaluation of abdominal aortic circumference by PMCT imaging was considered a useful age estimation method.departmental bulletin pape