Comparative study of mean Glandular dose between two Mammography Systems with Similar Target - Filter Combination

Authors

  • Ernest Agyemang - Oko  Department of Physics, Faculty of Physical Sciences, School of Agriculture and Physical Scienes, University of Cape Coast, Cape Coast, Ghana
  • Edem Sosu  Medical Radiation Physics Centre, Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Kwabenya, Accra, Ghana
  • Baah Sefa - Ntiri  

Keywords:

Mammography, Mean Glandular Dose, Full Field Digital Mammography, Target – Filter Combination

Abstract

Mean Glandular Dose is a tool for optimization of the mammography parameters which ultimately helps to determine limits for the breast dose and a better understanding of cancer risk. The objective of this study was to compare the Mean Glandular Dose (MGD) between a Full-Field Digital Mammography system and a Computed Radiology system both using the same fixed target/filter combination with automatic exposure mode. The study was also carried out to determine the MGD using the American College of Radiology Mammography Accreditation Phantom (ACR MAP). The mean glandular dose was measured for a breast phantom of thicknesses (20, 30, 40, 45, 50, 60, and 70) mm for the two mammography units and found to be within the acceptable limit. The MGD of the ACR MAP of thickness 42 mm was found to be 1.44mGy and 1.36mGy when exposed at 28kVp for the two units and were within the acceptable limit of less than 3.00 mGy. Comparatively, the doses delivered by the Full-field Digital mammography equipment were higher than doses delivered by the Computed Radiology equipment. It is recommended that both mammography units should be continually used for mammography examination.

References

  1. Ferlay, J., Shin, H. R., Bray, F., Forman, D., Mathers, C., & Parkin, D. M. (2010). Estimates of worldwide burden of cancer in 2008: GLOBOCAN 2008. International journal of cancer, 127(12), 2893-2917.
  2. Sickles, E. A. (2000). Breast Imaging: From 1965 to the Present 1. Radiology, 215(1), 1-16.
  3. Gøtzsche, P. C., & Nielsen, M. (2009). Screening for breast cancer with mammography. The cochrane library.
  4. Huda, W., Sajewicz, A. M., Ogden, K. M., & Dance, D. R. (2003). Experimental investigation of the dose and image quality characteristics of a digital mammography imaging system. Medical physics, 30(3), 442-448.
  5. Beckett, J. R., & Kotre, C. J. (2000). Dosimetric implications of age related glandular changes in screening mammography. Physics in medicine and biology, 45(3), 801.
  6. Coan, P., Bravin, A., & Tromba, G. (2013). Phase-contrast x-ray imaging of the breast: recent developments towards clinics. Journal of Physics D: Applied Physics, 46(49), 494007.
  7. Toroi P, Zanca F, Young KC, van Ongeval C, Marchal G, Bosmans H. Experimental investigation on the choice of the tungsten/rhodium anode/filter combination for an amorphous selenium-based digital mammography system. Eur Radiol 2010;17:2368-75.
  8. Baldelli P, Phelan N, Egan G. Investigation of the effect of anode/filter materials on the dose and image quality of a digital mammography system based on an amorphous selenium flat panel detector. Br J Radiol 2010;83:290-5.
  9. Emanuelli S, Rizzi E, Americo S, Fasano C, Cesarani F. Dosimetric and image quality comparison of two digital mammography units with different target/filter combinations: Mo/Mo, Mo/Rh, W/Rh, W/Ag. Radiol Med 2011;116:310-8
  10. Michal Biegala1, Teresa Jakubowska1, Karolina Markowska2 Effect of anode/filter combination on average glandular dose in mammography Journal of Medical Physics (2015). Volume 40. Issue 1. Page : 45-51
  11. Jamal, N., Ng, K., & McLean, D. (2014). A study of mean glandular dose during diagnostic mammography in Malaysia and some of the factors affecting it. The British journal of radiology.
  12. Paulana, H. V., Wigati, K. T., & Soejoko, D. S. (2015). Mean Glandular Dose and CDMAM Phantom Image Quality for Siemens Mammomat Inspiration. Journal of Medical Physics and Biophysics, 2(1), 30-35.
  13. Kanaga, K. C., Yap, H. H., Laila, S. E., Sulaiman, T., Zaharah, M., & Shantini, A. A. (2010). A critical comparison of three full field digital mammography systems using figure of merit. Med J Malaysia, 65(2), 119-122.

International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-10-31

Issue

Volume 3, Issue 6, September-October-2017

Section

Research Articles

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This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

[1]
Ernest Agyemang - Oko, Edem Sosu, Baah Sefa - Ntiri, " Comparative study of mean Glandular dose between two Mammography Systems with Similar Target - Filter Combination, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 6, pp.700-703, September-October-2017.