Male Breast Cancer-Dosimetry Evaluation in Teletherapy

Nilmara A. Guimarães; Verginia R. Crispim

doi:10.4236/ijmpcero.2014.34031

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International Journal of Medical Physics... > Vol.3 No.4, November 2014

Male Breast Cancer-Dosimetry Evaluation in Teletherapy ()

Nilmara A. Guimarães^*, Verginia R. Crispim

Universidade Federal do Rio de Janeiro, UFRJ/CT/COPPE/Programa de Engenharia Nuclear, Rio de Janeiro,Brazil.

DOI: 10.4236/ijmpcero.2014.34031 PDF HTML XML 3,292 Downloads 3,790 Views Citations

Abstract

The rate of male breast cancer has increased in recent years, due to the deficiency of preventive examinations (male mammography). Besides, since male breasts are generally smaller than female breasts, it is essential to monitor the doses received by male breasts, as well as those received by close, healthy and critical organs in order to assess the plan used in this kind of treatment. To do this, the distribution of doses in male breasts was simulated and assessed, based on the procedures adopted in the treatment of female breasts, when submitted to a radiation beam from a linear accelerator. The Alderson Rando phantom was used and the relevant absorbed doses were measured by TLD-100 thermoluminescent dosimeters distributed throughout the volume of interest. The results of the treatment planning were compared with the results obtained by TLDs. A difference of up to 8.5%, in comparison with the planned dose, as well as a 6% relative standard deviation was found.

Keywords

Radiotherapy, Dosimetry, Absorbed Dose, Teletherapy, Metrology

Share and Cite:

Guimarães, N. and Crispim, V. (2014) Male Breast Cancer-Dosimetry Evaluation in Teletherapy. International Journal of Medical Physics, Clinical Engineering and Radiation Oncology, 3, 241-251. doi: 10.4236/ijmpcero.2014.34031.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Paiva, S.M.M. (2006) AvaliaŁão da qualidade de vida de pacientes oncológicos em tratamento quimioterápico adjuvante. DissertaŁão, Ribeirão Preto, 111 p.
[2]	Hill, T.D., Khamis, H. J., Tyczynski, J.E. and Berkel, H.J. (2005) Comparison of Male and Female Breast Cancer Incidence Trends, Tumor Characteristics, and Survival. Annals of Epidemiology, 15, 773-780. http://dx.doi.org/10.1016/j.annepidem.2005.01.001
[3]	Giordano, S.H. (2005) A Review of the Diagnosis and Management of Male Breast Cancer. Oncologist, 7, 471-479. http://dx.doi.org/10.1634/theoncologist.10-7-471
[4]	Carmalt, H.L., Mann, L.J., Kennedy, C.W., Fletcher, J.M. and Gillet, D.J. (1998) Carcinoma of the Male Breast: A Review and Recommendations for Management. ANZ Journal of Surgery, 68, 712-715. http://dx.doi.org/10.1111/j.1445-2197.1998.tb04657.x
[5]	Leme, L.H.S. and Souza, G.A. (2006) Cancer de mama em homens: Aspectos epidemiológicos, clínicos e terapêuticos. Revista de Ciências Médicas, 15, 391-398.
[6]	Izewska, J. and Rajan, G. (2005) Chapter 3: Radiation Dosimeters. In: Podgorsak, E.B., Ed., Radiation Oncology Physics: A Handbook for Teachers and Students, International Atomic Energy Agency-IAEA, Vienna.
[7]	Da Rosa, L.A.R. (2001) Dosimetria Termoluminescente Aplicada à Física Médica, Instituto de Radioproteção e Dosimetria-CNEN, Rio de Janeiro.
[8]	ICRU (1989) International Commission on Radiation Units and Measurements. Tissue substitutes in radiation dosimetry and measurement, Report 44, Bethesda.
[9]	Guimarães, N.A. and Crispim, V.R. (2013) Dosimetric Evaluation in Teletherapy to Treatment of Male Breast. International Nuclear Atlantics Conference, Pernambuco.