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Abstract: FR-PO476

Effectiveness of Custom-Made Under-Table Shield in a Mobile C-Arm Fluoroscopy Unit

Session Information

  • Dialysis: Vascular Access
    November 03, 2023 | Location: Exhibit Hall, Pennsylvania Convention Center
    Abstract Time: 10:00 AM - 12:00 PM

Category: Dialysis

  • 803 Dialysis: Vascular Access

Authors

  • Jang, Jinha, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • Kim, Ji Hwan, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • Kim, In Soo, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • Kim, Sung Gyun, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • Kim, Jwa-kyung, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • An, Jung Nam, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
  • Lee, Hyungseok, Hallym University Sacred Heart Hospital, Anyang, Gyeonggi-do, Korea (the Republic of)
Background

It is emphasized that interventionists should adhere to the “As Low As Reasonably Achievable (ALARA)” principle and radioprotection strategies. However, radioprotection is limited when performing interventional vascular access procedures using mobile C-arm fluoroscopy, because the under-table shields are challenging to be mounted on an arm board of the table in a mobile C-arm angiography unit. We modified commercial tools and implemented custom-made under-table shields to overcome these limitations in the radioprotection strategy. This study aimed to quantitatively analyze the protective effect of the shields using real-time dosimeters.

Methods

Commercial shields were tailored and modified to completely cover the angiography table equipped with an arm board (Figure 1A). Custom-made under-table shields completely covered the table and arm board in all directions to protect operators and assistants (Figure 1B). There was no radiopaque material between the table and arm board, so the shields didn’t interfere with the fluoroscopy-guided procedures (Figure 1C). To quantitatively measure the dose equivalent of radiation, real-time dosimeters (RaySafe i2) were located one meter and two meters away from the table (Figure 1D).

Results

Digital subtraction angiography was performed five times with eight pulses per second mode using a mobile C-arm fluoroscopy (GE OEC 9900 system), and the mean radiation doses were compared before and after applying the customized under-table shields. After application of them, the dose equivalent (µSv) was reduced by 34% at a 1-meter distance and 82% at a 2-meter distance, respectively (Figure 2).

Conclusion

Optimizing fluoroscopy settings and implementing radioprotective shields are crucial for ensuring safety. Under-table shields play a significant role in radioprotection strategy and should be emphasized. We customized commercial shields to overcome the limitations of radioprotective strategies in mobile C-arm fluoroscopy settings, and the shields proved effective in reducing the radiation dose.

Figure 1

Figure 2