Página 258 - irpa

258 ST 3.3 – Protección radiológica en medicina nuclear
VIDA: VOXEL-PHANTOM-BASED SOFTWARE FOR INTERNAL DOSE
ASSESSMENT
Ocampo, Juan Camilo1 *; Petoussi-Henss, Nina2 ; Zankl, María2
1 Universidad Nacional de Colombia Sede Medellín. Colombia.
2 Helmholtz Zentrum München. Germany.
* Autor responsable, email: jcocampor@unal.edu.co
A new user-friendly computer program with graphical user interface was developed to estimate
the organ and effective doses to the patient resulting due to nuclear medicine examinations.
The developed program is expected to be a useful tool for the medical and paramedical
personnel who are involved with patient (and hence risks) calculations and counselling patients,
among them pregnant women who may be concerned about in utero exposure of their foetuses.
In contrast to other programs that utilize a single adult male and a single adult female stylized
phantom of reference size, the new software is employing the HMGU library of pre-calculated
Specific Absorbed Fraction -SAF- of photons and electrons, based on several anthropomorphic
adult and pediatric voxel phantoms, as well as the ICRP SAFs, for the reference male and
female computational phantoms for photons, electrons, alphas and neutrons. Furthermore, the
software is using the most recent nuclear decay data of ICRP Publication 107. The main utility
of this program is the calculation of internal radiation dose estimates for radionuclides used in
nuclear medicine once the kinetic model is defined. Patient-specific organ masses are
considered and the calculation of organ doses for individuals of different age and size is
attempted.