Purpose: Fluoroscopy is widely used to guide diagnostic and therapeutic spine procedures. The purpose of this study was to quantify radiation incident on the operator (operator Air Kerma) during a wide range of fluoroscopy-guided spine procedures and its correlation with the amount of radiation incident on the patient (Kerma Area ProductâKAP). Methods: We retrospectively included 57 consecutive fluoroscopically guided spine procedures. KAP [GyÂ cm2] and total fluoroscopy time were recorded for each procedure. An electronic dosimeter recorded the operator Air Kerma [Î¼Gy] for each procedure. Operator Air Kerma for each procedure, correlation between KAP and operator Air Kerma, and between KAP and fluoroscopy time was obtained. Results: Operator Air Kerma was widely variable across procedures, with median value of 6.4Â Î¼Gy per procedure. Median fluoroscopy time and median KAP per procedure were 2.6Â min and 4.7Â GyÂ cm2, respectively. There was correlation between operator Air Kerma and KAP (r2Â =Â 0.60), with a slope of 1.6Â Î¼Gy Air Kerma per unit GyÂ cm2KAP incident on the patient and between fluoroscopy time and KAP (r2Â =Â 0.63). Conclusion: Operator Air Kerma during individual fluoroscopy-guided spine procedures can be approximated from the commonly and readily available information of the total amount of radiation incident on the patient, measured as KAP.
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|Titolo:||Radiation dose to the operator during fluoroscopically guided spine procedures|
|Data di pubblicazione:||2017|
|Appare nelle tipologie:||01.01 - Articolo su rivista|