The Shielding Volume Reduction in a High Dose Rate Brachytherapy Room

  • Sandra González Guzmán Universidad Autónoma del Estado de México
  • Héctor Miguel Montenegro Monroy Universidad Autónoma del Estado de México
  • Jonathan Pérez Honorato Centro Oncológico Estatal del Instituto de Seguridad Social del Estado de México y Municipios (ISSEMyM)
  • Miguel Angel Martínez Flores Dirección de Gestión y Control del Instituto de Seguridad Social del Estado de México y Municipios (ISSEMyM)
  • Federico Miranda Suárez Centro Oncológico Estatal del Instituto de Seguridad Social del Estado de México y Municipios (ISSEMyM)
Keywords: Shielding, Brachytherapy, Radiation Protection

Abstract

This paper describes a method to reduce the shielding thickness in a high dose brachytherapy treatment room, with an Iridium-192 source, using the protocols established by the International Atomic Energy Agency in its Safety Report No. 47; calculating the volume of shielding material, without failing to comply with the radiation safety parameters established by the General Radiation Safety Regulations and regulations in force by the Comisión Nacional de Seguridad Nuclear y Salvaguardias, which acts as the regulatory body for the use of radioactive sources in Mexico. The shielding of the walls was determined as a function of room design, source activity, workload, use factor, number of weekly treatments, treatment time, and shielding material properties. The results show that the shielding volume can be reduced by 19.592% and 20.727% for five-point and eleven-point fractionation, respectively, for a Brachytherapy room with a maze.

References

International Commission on Radiological Protection. Las Recomendaciones 2007 de la Comisión Internacional de Protección Radiológica [Internet]. Madrid: Sociedad Española de Protección Radiológica; 2007. 116p. Reporte No. 103. Available from: https://www.icrp.org/docs/P103_Spanish.pdf

International Atomic Energy Agency. Annual Report for 2004 [Internet]. Vienna: International Atomic Energy Agency; 2004. 89p. Report No. 2004. Available from: https://www.iaea.org/sites/default/files/anrep2004_full.pdf

International Atomic Energy Agency. Radiation Safety in Industrial Radiography. Specific Safety Guide No. SSG-11 [Internet]. Vienna: International Atomic Energy Agency; 2011. 104p. Report No. SSG-11 Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1466_web.pdf /

Perez-Calatayud J, Corredoira Silva E, Crispín Contreras V, Eudaldo Puell T, et al. Protección radiológica en Braquiterapia: Informe del grupo de trabajo de Braquiterapia de la SEFM. Rev Física Médica [Internet]. 2015;16(2):11-47. Available from: https://revistadefisicamedica.es/index.php/rfm/article/view/175

International Commission on Radiological Protection. Protección Radiológica en Medicina [Internet]. Ciudad Autónoma de Buenos Aires: Sociedad Argentina de Radioprotección; 2011. 64p. Publicación No. 105. Available from: https://www.icrp.org/docs/P%20105%20Spanish.pdf

International Atomic Energy Agency. Radiation Protection and Safety in Medical Uses of Ionizing Radiation [Internet]. Vienna: International Atomic Energy Agency; 2018. 318p. Specific Safety Guide No. SGG-46. Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/PUB1775_web.pdf

Núñez M. Protección radiológica en Medicina Nuclear [Internet]. 2008; Available from: https://www.alasbimn.net/comites/tecnologos/material/Proteccion_radiologica.pdf

Reglamento General de Seguridad Radiológica [Internet]. 1988. Available from: https://www.gob.mx/cms/uploads/attachment/file/122476/reglamento_general_seguridad_radiologica.pdf

Eckerman K, Harrison J, Menzel HG, Clement CH. Compendium of Dose Coefficients based on ICRP Publication 60 [Internet]. International Commission on Radiological Protection; 2013. 130p. ICRP publication 119. Available from: https://www.icrp.org/docs/P%20119%20JAICRP%2041(s)%20Compendium%20of%20Dose%20Coefficients%20based%20on%20ICRP%20Publication%2060.pdf

National Council on Radiation Protection and Measurements. Structural Shielding design and evaluation for medical use of x rays and gamma the rays of energies up to 10 MeV. Washington: National Council on Radiation Protection and Measurements; 1998. 113p. Report No. 049.

International Atomic Energy Agency. Radiation Protection in the design of Radiotherapy Facilities [Internet]. Vienna: International Atomic Energy Agency; 2006. 130p. Safety Reports Series No. 47. Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1223_web.pdf

Turner JH. An introduction to the clinical practice of theranostics in oncology. Br J Radiol [Internet]. 2018;91(1091):20180440. Available from: https://dx.doi.org/10.1259%2Fbjr.20180440

Montemaggi P, Trombetta M, Brady LW. Brachytherapy, an International Perspective [Internet]. Springer; 2016. 408p. Available from: https://doi.org/10.1007/978-3-319-26791-3

Pallaroso Yela MA. Efecto del material de contraste en las ditribuciones de dosis asociadas a la braquiterapia de Alta Tasa con Iridio-192 para tratamientos de cáncer cérvico-uterino [Internet]. [Master's thesis]. [Quito]: Escuela Politécnica Nacional, 2018. 73p. Available from: https://bibdigital.epn.edu.ec/bitstream/15000/19490/1/CD-8888.pdf

Medina Mendieta SM. Puesta en servicio clínico de la unidad de Braquiterapia de alta tasa de dosis con fuente de 60 Co SagiNova; en el Centro Nacional de Radioterapia “Nora Astorga” en el periodo de marzo -abril 2018 [Internet]. [dissertation]. [Managua]: Universidad Nacional Autónoma de Nicaragua, Managua, 2019. 93p. Available from: https://repositorio.unan.edu.ni/12539/1/MONOGRAFIA%20SARAY%20MEDINA%20MENDIETA.pdf

Yanchapanta Bastidas VN. Metodología para adaptar recintos de irradiación de braquiterapia HDR con Ir-192 a Co-60[Internet]. [Master's thesis]. [Mendoza]: Universidad Nacional de Cuyo, 2016. 80p. Available from: http://ricabib.cab.cnea.gov.ar/571/1/1Yanchapanta.pdf

International Atomic Energy Agency. Radiotherapy facilities: Master planning and concept design considerations. Vienna: International Atomic Energy Agency; 2014. 31p. Human Health Reports No. 10.

Saravia-Rivera GE. Protección y seguridad radiológicas. Anal Radiol Mex [Internet]. 2013;2:105-110. Available from: https://www.medigraphic.com/pdfs/anaradmex/arm-2013/arm132g.pdf

American Association of Physicists in Medicine. Specification of brachytherapy sourse strength[Internet]. New York: American Association of Physicists in Medicine; 1987. 21p. Report No. 21. Available from: https://www.aapm.org/pubs/reports/rpt_21.pdf

Brachytherapy V. Equipo de carga diferida HDR GammaMedplus iX, 3/24 iX.[Internet]. Varian. Available from: https://www.varian.com/es/products/brachytherapy/afterloaders-applicators/gammamedplus-ix

Tinoco G. Antecedentes: Distancia entre dos puntos [Internet]. UAEM; 2013. Available from: http://metabase.uaem.mx:8080/bitstream/handle/123456789/2883/1_Antecedentes-Distancia%20entre%20dos%20puntos.pdf?sequence=1

Flores Martínez P. El trapecio isóceles de diagonales perpendiculares [Internet]. Universidad de Granada. Available from: http://www.ugr.es/~pflores//textos/aRTICULOS/Propuestas/trapecio.pdf#:~:text=Caracter%C3%ADsticas%20del%20trapecio%20de%20diagonales%20perpendiculares%20Seg%C3%BAn%20las,dos%20tri%C3%A1ngulos%20rect%C3%A1ngulos%20e%20is%C3%B3sceles%2C%20y%20dos%20tri%C3%A1ngulos

Salazar, C, y Del Castillo S. Fundamentos Básicos De Estadística. 2018. 224p.

Vargas Sabadìas A. Estadística descriptiva e inferencial. Murcia:Universidad de Castilla-La Mancha; 1995. 576p.

National Council on Radiation Protection and Measurements. Structural Shielding Design and Evaluation for Megavoltage X- and Gamma-Ray Radiotherapy Facilities. Bethesda: NCRP; 2005. Report No. 151.

Cherry R. Radiaciones ionizantes. In: Enciclopedia de salud y seguridad en el trabajo[Internet]. 2010. Available from: https://www.insst.es/documents/94886/162520/Cap%C3%ADtulo+48.+Radiaciones+ionizantes

Ghiasi H, Mesbahi A. A new analytical formula for neutron capture gamma dose calculations in double-bend mazes in radiation therapy. Reports Pract Oncol Radiother [Internet]. 2012;17:220–225. Available from: https://doi.org/10.1016/j.rpor.2012.03.011

Delgado Ramos O, Fernández Frededs O, Leyton Legues F, Rodríguez Casas AM, et al. Manual de protección radiológica y de buenas prácticas en radiología dento-maxilo-facial [Internet]. Chile: Instituto de Salud Publica de Chile;82p. Available from: https://www.minsal.cl/portal/url/item/7f2d789a9750153be04001011f012d29.pdf

Preciado Ramírez M, Luna Cano V. Medidas Básicas de Protección Radiológica. Cancerología. Cancerología [Internet]. 2010;5(2010):25–30. Available from:http://incan-mexico.org/revistainvestiga/elementos/documentosPortada/1294860259.pdf

Horton P, Eaton D. Desing and Shielding of Radiotherapy Treatment Facilities [Internet]. Philadelphia: IOP Publishing; 2013. 304p. Available from: https://doi.org/10.1088/978-0-7503-1440-4

International Atomic Energy Agency. Setting Up a Radiotherapy Programme: Clinical, Medical Physics, Radiation Protection and Safety Aspects [Internet]. Vienna: International Atomic Energy Agency; 2008. 255p. Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/pub1296_web.pdf

Australian Radiation Protection and Nuclear Safety Agency. Radiation Protection in Radiotherapy [Internet]. Barton: Acting Chief Executive Officer of ARPANSA; 2008. 106p. Radiation Protection Series Publication No. 14.3. Available from: https://www.arpansa.gov.au/sites/default/files/legacy/pubs/rps/rps14_3.pdf

International Atomic Energy Agency. Radiation Oncology Physics: A Handbook for Teachers and Students [Internet]. Vienna: International Atomic Energy Agency; 2005. 657p. Available from: https://www-pub.iaea.org/mtcd/publications/pdf/pub1196_web.pdf

International Atomic Energy Agency. Implementation of High Dose Rate Brachytherapy in Limited Resource Settings [Internet]. Vienna: International Atomic Energy Agency; 2015. 97p. Human Health Series No. 30. Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/Pub1670web-5444797.pdf

Jalbert M. Intensity Modulation of Medium-Energy, High Dose Rate Intensity Modulation of Medium-Energy, High Dose Rate Brachytherapy Sources Brachytherapy Sources [Internet]. [dissertation]. [Worcester]: Worcester Polytechnic Institute, 2020. 27p. Available from: https://digital.wpi.edu/pdfviewer/8049g7500

International Atomic Energy Agency. Protección radiológica y seguridad de las fuentes de radiación: Normas básicas internacionales de seguridad [Internet]. Vienna: International Atomic Energy Agency; 2011. 280p. N° GSR Part 3. Available from: https://www-pub.iaea.org/MTCD/Publications/PDF/SupplementaryMaterials/SupM_Pub1531_Spanish.pdf

Arwui CC, Schandorf C, Nani K, Darko EO, et al. Shielding design of a brachytherapy unit at the Korle Bu teaching hospital in Ghana: Comparison of theoretical calculations and experimental study. Radiat Prot Dosimetry [Internet]. 2010;140:59–66. Available from: https://doi.org/10.1093/rpd/ncq001

American Association of Physicists in Medicine. Remote Afterloading Technology [Internet]. New York: American Institute of Physics; 1993. 107p. Report No. 41. Available from: https://www.aapm.org/pubs/reports/rpt_41.pdf

Van Den Broek JG, Weatherburn H. Re-evaluation of a radiation protection cost benefit analysis study in brachytherapy. Br J Radiol [Internet]. 1994;67:59–62. Available from: https://doi.org/10.1259/0007-1285-67-793-59

Published
2021-12-30
How to Cite
González Guzmán, S., Montenegro Monroy, H. M., Pérez Honorato, J., Martínez Flores, M. A., & Miranda Suárez, F. (2021). The Shielding Volume Reduction in a High Dose Rate Brachytherapy Room. Mexican Journal of Biomedical Engineering, 42(3), 51-65. Retrieved from https://rmib.com.mx/index.php/rmib/article/view/1195
Section
Research Articles