A peer-reviewed journal published by K. N. Toosi University of Technology

Determination of diagnostic reference level in routine examinations of digital radiography in Nigeria

Document Type : Research Article

Authors

Department of Physics, Federal University of Technology, Akure,‎ Nigeria

Abstract
While ionizing radiation plays a pivotal role in the precise diagnosis and treatment, it concurrently engenders risks, including an elevated incidence of cancer. The research speaks to the discernible decline in quality assurance programmes and dose measurement endeavors within Nigerian imaging facilities, with a substantial portion lacking established protocols for routine machine calibration and dose measurement. This study encompasses a large-scale survey involving 307 adult patients undergoing routine X-ray procedures in two hospitals in Nigeria. Thermo-luminescent dosimeters (TLDs) were used for measuring Entrance Skin Dose (ESD) of consenting adult patients. The mean ESD values ranged from 1.16 mGy to a maximum of 3.94 mGy. Notably, these values were predominantly below the dose reference levels (DRLs) established by reputable bodies such as NRPB, CEC, IAEA, and UK for most examinations. The main purpose of this study was to determine the diagnostic reference level (DRL) for routine digital radiography examinations in Nigeria.

Highlights

  • This study encompassed Chest PA, Chest LAT X-ray examinations conducted in hospitals in Nigeria’s Western Region.
  • The mean ESDs for Chest PA (2.43 mGy) and Chest LAT (2.39 mGy) exceeded the DRLs set by CEC in 1996.
  • It was found that digital X-ray machines satisfy the established criteria for acceptability.
  • The equipment employed in the PFs was outdated likely contributing to the higher recorded ESDs.
  • DRL was compared with the international organizations’ levels, it can be reduced by adequate training of radiographers.

Keywords


 
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Volume 5, Issue 3
Summer 2024
Pages 35-39

  • Receive Date 07 April 2024
  • Revise Date 03 June 2024
  • Accept Date 01 June 2024