Z. You et al.: Radioprotection 2025, 60( 1), 20 – 27 25
Fig. 5. Comparison of radiation dose under different projection angles for area( 11) and area( 15).
Fig. 6. Comparison of radiation dose in area 7 and area 8 under 8 projection angles.
radiation protection measures, such as extending the length and width of the lead curtain under the operating table to adapt to changes in the position of the operating table or designing radiation protection equipment for use by the second operator in order to minimize the radiation dose to the second operator.
Our comprehensive analysis underscored that the radiation doses vary with projection angles. The first operator’ s area registers the peak dose at the head position( CRA 30 °), while the second operator’ s area is most exposed at the left anterior oblique position( LAO 45 °). These dose variations are influenced by specific machine configurations and the relative positioning of protective barriers. To mitigate radiation risks, operators can judiciously minimize exposure durations at these specific angles and harness advanced features of the DSA machine, such as screen freeze and virtual collimation, or design radiation protection equipment on the left side of the operating table to reduce the radiation dose to the operator.
The researchers have developed a DSA machine radioprotective cabin, which can significantly reduce the radiation dose from the four elevations around the operating table, including