Efficacy of an X-Ray Protective Drape in Reducing Operator Radiation Dose in Transfemoral Arterial Liver Interventions: a Randomized-Controlled Trial
Abstract
Purpose: Interventional radiologists are among the healthcare professionals most exposed to ionizing scatter radiation. A 0.5 mm lead equivalent X-ray protective drape (MXPD, Mavig, Germany) was introduced to reduce operator radiation dose and has demonstrated efficacy during cardiac interventions. This study evaluates the efficacy of the MXPD during transfemoral liver interventions.
Materials & methods: A single-center randomized controlled study was conducted to compare operator radiation exposure during transfemoral liver interventions (n = 100) with and without the MXPD. Primary outcome was the ratio of the combined operator radiation dose values-measured at the chest, eyes and both hands and normalized to the respective dose area products - between MXPD and control groups. Secondary outcomes included the ratios in operator radiation doses measured for the individual dosimeter locations.
Results: The MXPD group showed a significantly lower normalized radiation dose per DAP (mean reduction 0.31 µSv; 95% CI 0.083-0.536, p = 0.009), representing a 43% reduction. The effect of the drape was the highest for the whole-body dose measured above the lead apron (55% reduction, p = 0.10), the left hand finger dose (43%, p = 0.20) and the eye lens dose estimated at the left temple (63%, p = 0.10) and in between the eyes (47%, p = 0.10).
Conclusion: The MXPD can effectively reduce operator radiation dose during transfemoral arterial liver interventions, offering a practical adjunct…
How strong is the evidence?
Evidence Hub reads this as a randomized trial, done in people. Its evidence level is 2 of 5 (High · randomized trial). Randomized trials of a reasonable size are the strongest single-study design. Reported size: 100 participants or records.
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