Application of Optically Stimulated Luminescence Dosimeters in the Evaluation of the Dose Map Software in Interventional Radiology

Eduardo Souza Santos; Denise Yanikian Nersissian; Elisabeth Mateus Yoshimura

doi:10.15392/2319-0612.2026.2938

Autores/as

Eduardo Souza Santos Universidade de São Paulo
Denise Yanikian Nersissian Universidade de São Paulo
Elisabeth Mateus Yoshimura Universidade de São Paulo

DOI:

https://doi.org/10.15392/2319-0612.2026.2938

Palabras clave:

Interventional Radiology, entrance skin kerma, peak skin dose, OSL dosimetry

Resumen

Interventional radiology is widely employed; however, the complexity and duration of certain procedures may result in significant radiation exposure to patients. This study presents a comparison between a commercial computational dose mapping method used in interventional radiology, Dose Map, and optically stimulated luminescence dosimetry using a matrix built with these dosimeters. The dosimetric material was obtained from a roll of Landauer Luxel® tape and calibrated on a GE® Innova 4100 IQ angiography system, using an ionization chamber as a reference. The calibration yielded a linear relationship between the readout signal and the air kerma. Experiments were conducted using homogeneous poly(methyl methacrylate) phantoms, as well as clinical monitoring of patients. The maximum deviation between kerma values measured by the dosimeters and those estimated by Dose Map was 14%. The comparison among the dosimeter matrix, radiochromic film, and Dose Map demonstrated good geometric agreement in both phantom studies and patient monitoring. These results confirm the applicability of Dose Map for real-time dose monitoring, contributing to improved patient safety in interventional radiology.

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