Metodología para la validación de programas de cálculo de dosis en piel
DOI:
https://doi.org/10.37004/sefm/2024.25.2.002Palabras clave:
intervencionismo, protección del paciente, dosis en piel, programa de cálculo de dosis, validaciónResumen
Objetivo. Se presenta una metodología para facilitar la validación de programas de cálculo de dosis en piel en procedimientos intervencionistas.
Material y métodos. La metodología parte de unas situaciones de irradiación archivadas como informes estructurados de dosis DICOM (Radiation Dose Structured Reports, RDSRs) y los valores de referencia de dosis en piel en cada situación. Los usuarios deberán procesar los RDSRs en su programa de cálculo de dosis piel y comparar su resultado con los valores de referencia.
Los autores han realizado 27 irradiaciones empleando dos equipos de distintos fabricantes. Para cada irradiación se han variado parámetros que afectan a la dosis en piel y se ha medido con una cámara de ionización la dosis en piel recibida por un maniquí relleno de agua. Se ha aplicado la metodología para validar el programa SkinDose 2D.
Resultados. Las medidas experimentales tienen una incertidumbre del 13% (k = 2). La predicción del programa SkinDose 2D difiere de las medidas entre un -9% y +8%, estando dentro de las incertidumbres experimentales.
Conclusiones. Variando distintos parámetros que afectan a la estimación dosimétrica, esta metodología permite realizar una primera validación de modelos de dosis en piel, caracterizándolos antes de cualquier otra irradiación adicional del usuario.
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