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Patient effective dose evaluation for chest X-ray examination in three digital radiography centers
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R. Paydar   , A. Takavar , M.R. Kardan , A. Babakhani , M.R. Deevband , S. Saber |
| , paydar@razi.tums.ac.ir |
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Abstract: (8182 Views) |
| Background: The radiation doses resulting from
diagnostic X-ray examinations are routinely measured
in terms of entrance surface dose (ESD) and effective
dose (ED). In this study, for the purpose of radiation
protection, the radiation doses received from Digital
chest X-ray examination were evaluated in terms of
ESD and ED. Material and Methods: The ED was
calculated by using the MCNP Monte Carlo code and
an adult hermaphrodite mathematical phantom. The
effects of both operating high voltage and projection
geometry on the effective dose were investigated.
The absolute values of the ED were calculated for
digital and conventional Posterior-Anterior (PA) and
Lateral (LAT) projections of chest radiography.
Results: The results show ED for PA projection in
digital chest radiography in some major hospitals is
higher than National Diagnostic Reference Level
(NDRL). Conclusion: Therefore optimization process
should be considered seriously at national level to
reduce patient exposure in digital chest radiography
in Iran. Iran. J. Radiat. Res., 2012 10(3‐4): 139‐143
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| Keywords: Effective dose- chest X-ray - digital radiography-ED-ESD. |
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Full-Text [PDF 288 kb]
(6490 Downloads)
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Type of Study: Original Research |
Subject:
Radiation Biology
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