Cancer Risk Assessment of Patients Undergoing Computed Tomography Examination at the Korle-Bu Teaching Hospital

Authors

  • T. A. Sackey  Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Accra-Ghana
  • C. Schandorf  School of Nuclear and Allied Sciences, University of Ghana, Accra-Ghana
  • J. J. Fletcher  Department of Applied Physics, University of Development Studies, Navrongo-Ghana
  • Y. B. Mensah  Radiology Department, Korle-bu Teaching Hospital, Accra-Ghana
  • I. Shirazu  Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Accra-Ghana
  • K.O. Akyea-Larbi  School of Nuclear and Allied Sciences, University of Ghana, Accra-Ghana
  • E. K. Tiburu  Radiological and Medical Sciences Research Institute, Ghana Atomic Energy Commission, Accra-Ghana
  • S. T. Odonkor  

DOI:

https://doi.org//10.32628/IJSRST184170

Keywords:

Computed Tomography, Dose Length Product, Effective Dose, Cancer Risk, Cancer Incidence, Life Attributable Risk

Abstract

The aim of this study is to estimate the effective dose and assess the lifetime attributable risk of cancer incidence of patients undergoing computed tomography scan at the Korle-Bu Teaching Hospital in the Greater Accra Region of Ghana. Data on Volume CT Dose Index ( ) and Dose Length Product ( ) displayed on the scanner control console was recorded after confirmation of the results by performing independent checks on a phantom. The effective doses were estimated using the  displayed and the anatomic region specific conversion factors ( ). The average effective dose for the head, abdomen, chest, neck, and pelvis were 3.63± 2.39mSv, 15.37±8.49 mSv, 12.72 ± 13.97 mSv, 4.04 ± 1.47 mSv and 15.8 ± 3.59 mSv respectively. Effective doses for the head and neck were within the typical range of (1-10mSv) for CT examinations whilst abdomen, chest and pelvis were above 10mSv. The average life attributable risk of cancer incidence for each region of examination were determined from the effective dose, sex and age using  the model proposed in BEIR VII Report . The average cancer risk incidence for head, neck, chest, abdomen and pelvis examinations were low in the range 1 in 10,000 to 1 in 1,000. There were wide variations in the effective dose values obtained for the same region under examination. This trend calls for the optimization of CT examination protocols to be established to ensure that patient doses are as low as reasonably achievable, economic and social factors being taken into account especially for chest examinations.

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International Journal of Scientific Research in Science and Technology

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Published

2018-02-28

Issue

Volume 4, Issue 2, January-February-2018

Section

Research Articles

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How to Cite

[1]
T. A. Sackey, C. Schandorf, J. J. Fletcher, Y. B. Mensah, I. Shirazu, K.O. Akyea-Larbi, E. K. Tiburu, S. T. Odonkor, " Cancer Risk Assessment of Patients Undergoing Computed Tomography Examination at the Korle-Bu Teaching Hospital, International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 4, Issue 2, pp.861-868, January-February-2018. Available at doi : https://doi.org/10.32628/IJSRST184170