Assessment of Scattered Radiation around C-arm Fluoroscopy in the Operating Room at Hatyai Hospital

Abstract

Background: Integrating technology to enhance the efficiency of medical services, particularly in radiographic imaging using C-Arm Fluoroscopy, is crucial. Measuring scatter radiation levels from this equipment ensures the safety of healthcare professionals.

Objective: To study the scattered radiation around the C-arm fluoroscopy machine at distances of 0.5, 1.0, and 1.5 meters, and at heights of 0.75 and 1.45 meters from the floor.

Methodology: This survey researched scattered radiation at six positions: right head, right mid-bed, right foot, foot of the bed, left mid-bed, and left head of the bed. Measurements were taken at distances of 0.5, 1.0, and 1.5 meters, and heights of 0.75 and 1.45 meters. Machine settings were 80 kVp, 3 mAs, with data collected 10 times per position. Data was analyzed using Microsoft Excel and descriptive statistics.

Results: Scatter radiation decreased with distance. The highest radiation was at 0.5 meters, especially at the left mid-bed position at both heights, with values of 6.67 µSv/h and 6.44 µSv/h. The lowest radiation was at the foot of the bed at 1.5 meters, with 0.85 µSv/h.

Conclusion: The average scattered radiation around the C-arm fluoroscopy X-ray machine, with the lowest radiation dose, is at the bed end position. This is because it is the farthest from the fluoroscopy X-ray tube, resulting in the least scattered radiation. The annual dose of scattered radiation that workers are exposed to does not exceed the limit set by the International Commission on Radiological Protection (ICRP), which is 20 mSv/yr. To ensure maximum radiation protection, workers and related personnel must wear lead aprons in areas where radiation is used.