Exposure to Direct and Scatter Radiation with Use of Mini-C-Arm Fluoroscopy

Giordano, Brian D.; Ryder, Steven; Baumhauer, Judith F.; Digiovanni, Benedict F.
May 2007
Journal of Bone & Joint Surgery, American Volume;May2007, Vol. 89-A Issue 5, p948
Academic Journal
Background: Mini-c-arm fluoroscopy has become an important resource to the orthopaedic surgeon. Exposure of the orthopaedic surgical team to radiation during standard large-c-arm fluoroscopy has been well studied; however, little is known about the amount of exposure to which a surgical team is subjected with the use of mini-c-arm fluoroscopy. Moreover, there is controversy regarding the use of protective measures with mini-c-arm fluoroscopy. Methods: We evaluated the use of mini-c-arm fluoroscopy during a simulated surgical procedure to quantify the relative radiation doses at various locations in the operative field. A standard calibrated mini-c-arm fluoroscope was used to image a phantom upper extremity with thirteen radiation dosimeters placed at various distances and angulations to detect radiation exposure. Results: After 155 sequential fluoroscopy exposures, totaling 300.2 seconds of imaging time, only the sensor placed in a direct line with the imaging beam recorded a substantial amount of measurable radiation exposure. Conclusions: The surgical team is exposed to minimal radiation during routine use of mini-c-arm fluoroscopy, except when they are in the direct path of the radiation beam.


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