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Updated: Jun 24, 2026

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
Paediatric cardiac catheterization radiation doses: a 6-year retrospective survey and typical values in a Mexican
Carlos Ubeda de la Cerda1, Maria Franco-Cabrera2, Guillermo Andrés Negrete-Gómez2
1Medical Technology Department, Faculty of Health Sciences, Universidad de Tarapacá, General Velásquez 1775, 1000000 Arica, Arica y Parinacota, Chile.
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 (Pka) and cumulative air kerma (Ka,r) were collected.
Results:
Typical values (median Pka) ranged from: <5 kg (2.84 Gy·cm2) up to 50-<80 kg (30.54 Gy·cm2). By age group <1 year (3.28 Gy·cm2) up to 10-15 years (20.63 Gy·cm2). 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·cm2). While weight predicts diagnostic dose, complexity drives therapeutic exposure. These benchmarks enable local optimization and support future National DRL development.
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