Gradual Rise in CT Scans Amongst Older Adults
AT A SINGLE quaternary-care tutorial hospital, the proportion of computerised tomography (CT) scans carried out on sufferers aged 60–90 elevated from 50.4% in 2014 to 58.3% in 2024. This pattern raises consideration to cumulative radiation publicity in older adults, who’re more and more present process a number of imaging procedures. CT scans use X-rays to generate detailed inner photographs and are crucial for diagnosing situations comparable to fractures, cancers, and heart problems, however repeated scans can incrementally increase radiation danger.
The research discovered that aged sufferers are the first recipients of recurrent CT exams. In 2024, 26.6% of sufferers aged 60 and above underwent two or extra scans per yr, in contrast with 25.6% in 2014. Excessive-frequency use—together with 5 or extra scans yearly—can also be largely concentrated on this age group. Against this, youthful adults noticed a decline in repeated imaging, dropping from 17.4% to 12.7% over the identical interval. These patterns spotlight how cumulative publicity is especially related for older adults inside this hospital inhabitants.
How the Research Measured CT Frequency
Researchers analysed all CT exams carried out from 2014 to 2024, stratifying sufferers by decade of age. They calculated annual CT quantity and per-patient examination frequency, specializing in high-frequency use (≥2, ≥3, ≥5, and ≥10 exams per yr). Temporal developments have been assessed utilizing centred log-ratio transformation and linear regression. The research initiatives that aged sufferers might account for almost two-thirds of all CT scans at this hospital by 2035.
Limitations to Take into account
These findings are primarily based on information from a single hospital and should not mirror nationwide or worldwide developments. The research doesn’t hyperlink imaging frequency to medical outcomes, and particular person radiation doses weren’t quantified. Radiation danger per single scan stays low, however repeated publicity can accumulate over time.
Implications for Scientific Observe
The info emphasises the necessity for cautious CT planning in older adults. Clinicians ought to steadiness diagnostic profit with cumulative radiation publicity, optimise imaging protocols, and contemplate different modalities when possible. As older sufferers account for an rising proportion of scans, methods to make sure justified, protected imaging shall be crucial for patient-centred care.
Reference
Pham G et al. Computed tomography utilization and radiation danger within the aged: Allow us to not downplay frequent imaging. Br J Radiol. 2026;DOI:10.1093/bjr/tqag051.
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