X-ray tube operators can be exposed to equal or higher scattered radiation doses to the hand as cassette holders during diagnostic radiographic procedures of the equine vertebral column and limbs.

This research investigates the amount of scattered radiation exposure received by x-ray tube operators and workers who hold the cassette during diagnostic radiographic procedures on horses. It also compares the ability of lead and lead-free gloves to shield against this scattered radiation.

Objectives and Methodology

• The study aimed to measure scattered radiation doses absorbed by hands of workers operating the x-ray tube and those holding the cassette during equine (horse) radiographic studies, focusing on both limb and spinal column procedures.
• Another goal was to compare the protective capabilities of lead gloves and lead-free gloves in reducing these scattered radiation doses.
• The researchers also investigated radiation doses absorbed by the hands of cassette holders that were in the primary x-ray beam.
• For this study, a portable x-ray unit was used on a whole-body horse cadaver to simulate six different types of radiographic studies.
• Doses were measured without any shielding, and doses to cassette holders were measured after enclosing the ion chamber in a lead and lead-free glove for comparison.
• Thirty exposures were performed for each view and condition studied, totaling to 1,920 measurements.

Findings and Conclusions

• Scattered radiation doses to x-ray unit operators were generally higher than those received by cassette holders for studies carried out on the horse’s hoof, thoracic vertebrae, and lumbar vertebrae.
• On the other hand, cassette holders received higher radiation doses for studies focusing on the fetlock (metacarpophalangeal joint) and hock (tarsus), while no noticeable difference was observed for the stifle joint.
• Both lead and lead-free gloves considerably decreased scattered radiation dose, with lead gloves decreasing it by 99.58% and lead-free gloves decreasing it by 98.9%.
• The findings confirmed that x-ray tube operators could be exposed to equal or even higher scattered radiation doses to the hand as cassette holders. As a result, both roles are subject to considerable radiation hazard.
• Lead-free gloves, although slightly less effective, may be considered as an alternative to lead gloves because their lighter weight may encourage more frequent usage among workers, thereby reducing overall exposure.