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The effectiveness of additional lead-shielding drape and low pulse rate fluoroscopy in protecting staff from scatter radiation during cardiac resynchronization therapy (CRT)

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Abstract

Purpose

Cardiac resynchronization therapy (CRT) often requires a long fluoroscopic time and protection from scatter radiation. This study reports on scatter radiation levels during CRT, with and without additional shielding, and using standard or low pulse rate fluoroscopy.

Materials and methods

Additional lead-shielding drape (0.35-mm lead equivalent) was used on the left side of the table and pulsed fluoroscopy was performed at rates of 10 pulses/s (usual rate) and 7.5 pulses/s (low pulse rate). Fluoroscopy scatter radiation was measured for both pulse rates using an acrylic phantom with a radiation survey meter, both with and without the additional lead-shielding drape.

Results

With the additional lead-shielding drape, the fluoroscopy scatter radiation was reduced by 74.3% at 10 pulses/s and 78.6% at 7.5 pulses/s. If the fluoroscopy was changed from 10 pulses/s to 7.5 pulses/s, the scattered radiation at the primary physician’s position was reduced by 24.0%. The combined use of additional shielding drape and low pulse rate fluoroscopy reduced scatter radiation by over 80%.

Conclusion

Additional lead-shielding drape and low pulse rate fluoroscopy are effective in reducing the scattered radiation dose to physicians and nurses during CRT.

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Acknowledgements

We would like to acknowledge Koichi Tabayashi, MD, PhD Department of Cardiovascular Center, Tohoku Medical and Pharmaceutical University Hospital. We also thank Hiroo Chiba RT, Department of Radiology, Tohoku Medical and Pharmaceutical University Hospital, for technical assistance in this study. We thank Karl Embleton, PhD, from Edanz Group (www.edanzediting.com/ac) for editing a draft of this manuscript.

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Authors and Affiliations

  1. Department of Radiology, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyagino-ku, Sendai, 983-8512, Japan

    Yoshiaki Morishima

  2. Department of Radiological Technology, Tohoku University School of Health Sciences, 2-1 Seiryo Aoba-ku, Sendai, 980-8575, Japan

    Yoshiaki Morishima & Koichi Chida

  3. Department of Cardiovascular Center, Tohoku Medical and Pharmaceutical University Hospital, 1-12-1 Fukumuro, Miyagino-ku, Sendai, 983-8512, Japan

    Yoshiaki Katahira

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  1. Yoshiaki Morishima
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  2. Koichi Chida
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Correspondence to Yoshiaki Morishima.

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Morishima, Y., Chida, K. & Katahira, Y. The effectiveness of additional lead-shielding drape and low pulse rate fluoroscopy in protecting staff from scatter radiation during cardiac resynchronization therapy (CRT). Jpn J Radiol 37, 95–101 (2019). https://doi.org/10.1007/s11604-018-0783-7

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  • DOI: https://doi.org/10.1007/s11604-018-0783-7

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