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Hand dose measurements in interventional radiology
J P Felmlee1, P F McGough, R L Morin
1Department of Diagnostic Radiology, Mayo Clinic and Foundation, Rochester, MN 55905.
Health Physics
|February 1, 1991
Abstract:
Measurements of radiation dose to the hand were conducted using TLD ring badges for individual interventional radiology cases. Results from over 30 examinations (including transhepatic cholangiograms and biliary and nephrostomy procedures) conducted by four radiologists using identical equipment show an average hand dose of 1.5 mGy (150 mrad) per procedure. Hand dose varied inversely with distance from the patient. Due to variable hand positions during clinical examinations, fluoroscopic time was not found to be a good indicator of hand dose.