Estimation of Entrance Surface Dose of Adult Patients undergoing Computed Radiography Examinations in Two Hospitals

Authors

  • Daniel Ackom  Department of Physics, University of Cape Coast, Cape Coast, Ghana
  • Edem Sosu  Department of Medical Physics, School of Nuclear and Allied Sciences, University of Ghana, Atomic Campus, Accra, Ghana
  • Stephen Inkoom  Medical Radiation Physics Centre, Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Accra. Ghana
  • Cyril Schandorf  Radiation Protection Institute, Ghana Atomic Energy Commission, Accra. Ghana

Keywords:

Entrance Surface Dose (ESD), Computed Radiography (CR), Quality control (QC), Diagnostic Reference Level (DRL).

Abstract

This study seeks to investigate the distribution of doses to adult patients undergoing computed radiography using the free-in air method and the factors that affect the doses received by the patients, and hence develop the methodology for optimization of protection of the patient. The entrance surface dose (ESD) was estimated for a total of 619 patients with 243 males (39.3%) and 376 females (60.7%) for two hospitals A and B. The minimum and maximum age of the patients that formed part of this study were 18 and 82 years. The mean ESDs calculated were in the range of 0.29 0.0041 mGy to 6.08 0.55 mGy for chest PA, lumbar spine AP and LAT, cervical spine AP and LAT, skull AP and LAT and abdomen AP examinations. All the results for the various anatomical parts were lower compared with published results and diagnostic reference levels except chest PA examination which the value estimated at hospital B was by a factor of 2.56, 2.20 and 1.65 higher than the mean ESDs values by Inkoom et al, the IAEA and Public Health of UK respectively. An increment by factor of 3.07, 2.87 and 2.15 were found in the estimated mean ESDs for chest PA examination at hospital A compared with the published results respectively. The study therefore has shown that the estimated mean ESD of the hospitals were within the recommended references values except chest PA.

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International Journal of Scientific Research in Science, Engineering and Technology

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Published

2017-10-21

Issue

Volume 3, Issue 6, September-October-2017

Section

Research Articles

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How to Cite

[1]
Daniel Ackom, Edem Sosu, Stephen Inkoom, Cyril Schandorf, " Estimation of Entrance Surface Dose of Adult Patients undergoing Computed Radiography Examinations in Two Hospitals, International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 3, Issue 6, pp.746-752, September-October-2017.