Key result
Aging is linked to increased cardiac diameter and CTR in men, rarely exceeding 50%.
Why the study?
The usefulness of chest radiographs in assessing physical dimensions and the effect of aging on cardiothoracic ratio in men was not well characterized.
Cohort (n=243)
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CTR >50% remains rare in healthy aging men; leaves open whether age-specific norms refine CXR interpretation in geriatric cohorts.
POTTER et al. (1982) reported a cohort. Aging was evaluated on Cardiac diameter (CD) and cardiothoracic ratio (CTR). Aging was associated with increases in cardiac diameter and cardiothoracic ratio in men, though only one subject without heart disease had a CTR exceeding 50%.
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