Evaluation of radiation exposure to the examiner in the angiografy in routine clincal practice using a x-ray protictive glove

Zielsetzung:

Purpose of the study was to evaluate the radiation exposure to the examiner in the angiografy in routine clinical practice without and withx-rayprotective gloves using a direct dosimeter.

Material und Methodik:

Phantom memeasurements were conducted in the direct x-ray beam and in the area of scattered Radiation without and with protection. Patient measuremnts were determined in interventional angiografies of the lower limb in antegrade puncture technique via the femoral artery. in 24/50 interventions, an elastic natural rubber latex glove with lead-free metal shielding against Radiation was used. All measurements were performed with a direct Dosimeter. At the end of the investigations, the glove in relation to sensomotor characteristicswas evaluated.

Ergebnisse:

Phantom measurements: under application oft he protective glove a significant increase oft he dose area product 1084.2 to 1603.8 mGy*cm² (p < 0.001) and of the examiners hand dose 143 to 221.8µSv (p < 0.001)can be found in the direct x-ray beam. A significant reduction oft he examiners hand dose is verifiable for scattered radiation 1.76 to 0.75µSv (p < 0.001). Patient measurements: under application oft he protective glove a significant increase oft he dose area product 6183.2 to 10462.9 mGy*cm² (p < 0.05) and a decrease of the average dose rate 0.76 to 0.43 mSv/h fort he entire procedurewas determined. The tactile sensitivity was assed as not restricted (18/24).

Schlussfolgerungen:

The new generation of protective gloves are characterized by a shielding effect against X-ray diffused radiation, without restricting the sense of touch. However, an absolute recommendation for the use of protective gloves cannot be made, since this/these cause(s) an increase in the dose both for the patient and the examiner, especially in the area of the direct radiation exposure (in the path to be punctured)