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Decreased dose of radiation to dogs during acquisition of elbow radiographs using draped shielding
  1. S. Nemanic, DVM, MS, PhD, DACVR1,
  2. B. K. Nixon, DVM, MA1,
  3. R. A. Francis, AA1,
  4. R. H. Farmer, MS,†2,
  5. D. L. Harlan, BS2 and
  6. W. I. Baltzer, DVM, PhD, DACVS1
  1. 1Departments of Clinical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR 97331, USA
  2. 2Environmental Health and Safety, Oregon State University, Corvallis, OR 97331, USA
  1. E-mail for correspondence: sarah.nemanic{at}oregonstate.edu

Abstract

Protective lead equivalent shielding of patients is not routinely used in veterinary radiology. The goal of this study was to determine whether the use of lead equivalent shielding results in a significant reduction in dose of radiation to dogs during acquisition of elbow radiographs. The authors measured radiation doses in the primary beam and over and under protective lead equivalent shielding that was placed at the level of the eyes, body and gonads during acquisition of elbow radiographs using 0.01 mSv sensitivity dosimetry badges. Shielding consisted of 0.5 mm lead equivalent aprons and thyroid shields placed over bodies and eyes, respectively. All badges in the primary beam-detected radiation. Shielding significantly decreased the dose of radiation with significantly less scatter and tube leakage radiation detected under compared with over shielding (P=0.0001). The dose of radiation detected over shielding was significantly greater than zero (P=0.0001), while that under shielding did not differ significantly from zero (P=0.09). Based on these results, the authors recommend protective shielding be used on veterinary patients during radiography.

  • Radiation safety
  • Radiography
  • Dogs
  • Radiology
  • Accepted March 7, 2015.

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