Radiographic Determination of Normal Values of Aortic Arch Diameter in a Nigerian Population
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Abstract
The aortic arch diameter has been noted to be affected by racial variations. 1018 postero-anterior (PA) chest radiographs of samples of normal male and female Nigerians of ages 4 years and above were used for this study. A nomogram of aortic arch diameters for the studied population has been determined for the studied population and also mean values for each of the age categories within the studied population. Age correlated positively and significantly with aortic arch diameters. Significant difference was noted between the aortic arch diameters of males and females. This diameter was noted to be about 6.7% longer in males than in females of the same age categories. Mean differences were noted and various values suggested in the aortic arch diameters between each decade of age groups. An overall mean difference of 0.15cm was noted between all the age groups.
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