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Paediatric cardiac catheterization radiation doses: a 6-year retrospective survey and typical values in a Mexican tertiary care center
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DOI：10.1093/rpd/ncag032.png)
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Abstract
En 中文
Background Establishing typical values is vital for radiation safety in paediatric fluoroscopically guided cardiac procedures (FGCP). Aim To publish the first typical values for FGCP in a Mexican tertiary hospital. Methods We retrospectively analyzed 136 procedures (2018-2024), stratified by procedure type, weight, and age. Kerma-area product (P-ka) and cumulative air kerma (Ka,r) were collected. Results Typical values (median P-ka) ranged from: <5 kg (2.84 Gy & centerdot;cm(2)) up to 50-<80 kg (30.54 Gy & centerdot;cm(2)). By age group <1 year (3.28 Gy & centerdot;cm(2)) up to 10-15 years (20.63 Gy & centerdot;cm(2)). No statistical difference was found between diagnostic and therapeutic procedures. Conclusions Weight-stratified institutional typical values revealed critical disparities, notably a five-fold higher dose for therapeutic procedures in infants <5 kg (4.07 vs 0.80 Gy & centerdot;cm(2)). While weight predicts diagnostic dose, complexity drives therapeutic exposure. These benchmarks enable local optimization and support future National DRL development.
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DIAGNOSTIC REFERENCE LEVELS
INTERVENTIONAL CARDIOLOGY
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