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  1. Article ; Online: Thermoplastic polymers as water substitutes.

    Quiñones, Luis Ángel / Sánchez, Andrea / Pérez, Joaquín / Seguro, Álvaro / Castro, Ignacio / Castanedo, Miguel / Vicent, Diana / Iborra, María Amparo

    Biomedical physics & engineering express

    2024  Volume 10, Issue 4

    Abstract: ... ...

    Abstract Background
    MeSH term(s) Water/chemistry ; Polymers/chemistry ; Printing, Three-Dimensional ; Monte Carlo Method ; Phantoms, Imaging ; Plastics/chemistry ; Computer Simulation ; Humans ; Brachytherapy/methods
    Chemical Substances Water (059QF0KO0R) ; Polymers ; Plastics
    Language English
    Publishing date 2024-05-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2057-1976
    ISSN (online) 2057-1976
    DOI 10.1088/2057-1976/ad43ee
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Study of dose dependence on density in planar 3D-printed applicators for HDR Ir

    Bienvenido, Rafael / Quiñones, Luis Ángel / Pérez, Joaquín / Castro, Ignacio / Gutiérrez, Lucía / López, Juan de Dios / Botana, Javier / Iborra, Maria Amparo

    Brachytherapy

    2022  Volume 22, Issue 2, Page(s) 250–259

    Abstract: Purpose: This paper describes a method to evaluate the influence of 3D printed plesiotherapy applicators densities in the most clinically relevant dosimetric planes of these brachytherapy treatments. Studied densities range goes from that of water to ... ...

    Abstract Purpose: This paper describes a method to evaluate the influence of 3D printed plesiotherapy applicators densities in the most clinically relevant dosimetric planes of these brachytherapy treatments. Studied densities range goes from that of water to that of air including the intermediate applicators densities made of acrylonitrile butadiene styrene and polylactic acid, materials used as Fused Deposition Modelling (FDM) filaments.
    Methods and materials: All applicators were manufactured by means of FDM 3D printing and a special empty applicator of ABS walls was designed to be filled with water or air. In each of these applicators, the values of the dose and gamma index at the surface and at the prescription depth were measured in clinical conditions, using EBT films.
    Results: Analysis of results allow us to conclude that the influence of the applicators density on the dose value in the studied materials depends on the distance at which the dose is measured. Thus, at the prescription depth no influence is observed, however this influence becomes noticeable near the surface of the applicators with dose differences of more than 10% for densities close to 0.4 g/cm
    Conclusion: Therefore, the density of FDM manufactured applicators should be taken into account when calculating surface dose for low density applicators, as variations caused by density can have clinical implications because is the surface dose that is associated with the toxicity of brachytherapy skin treatments.
    MeSH term(s) Humans ; Radiotherapy Dosage ; Brachytherapy/methods ; Radiometry ; Printing, Three-Dimensional ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-11-28
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2098608-7
    ISSN 1873-1449 ; 1538-4721
    ISSN (online) 1873-1449
    ISSN 1538-4721
    DOI 10.1016/j.brachy.2022.10.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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