title: Radiation doses delivered to radiologists during contrast-enhanced helical-CT examinations.
abstract: This work monitors the radiation doses to a radiologist during supervision of automatic contrast media injections during helical-CT examinations of the chest and abdomen. Forty consecutive standard helical-CT examinations of adult's chest and/or abdomen were monitored with five dosimeters worn by the radiologist supervising the entire injection with the hand on the injection site. Mean doses per examination measured at chest, thyroid gland, and hand levels were 11, 16, and 130 microGy, respectively, during chest examinations, and 5, 7, and 55 microGy during abdominal examinations. According to the high number of CT examinations performed, wearing lead apron, special lead glove protection, and thyroid shield is highly recommended.
authors.affiliation: Department of Diagnostic and Interventional Radiology, University Hospital, CHUV, CH-1011 Lausanne, Switzerland.
authors.forename: N H
authors.initials: NH
authors.lastname: Theumann
authors.forename: F R
authors.initials: FR
authors.lastname: Verdun
authors.forename: J F
authors.initials: JF
authors.lastname: Valley
authors.forename: P
authors.initials: P
authors.lastname: Capasso
authors.forename: P
authors.initials: P
authors.lastname: Schnyder
authors.forename: R A
authors.initials: RA
authors.lastname: Meuli
mesh_terms: D000328:Adult; D000368:Aged; D003287:Contrast Media / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure; D011829:Radiation Dosage; D011834:Radiation Monitoring; D011835:Radiation Protection / Q000295:instrumentation; D011860:Radiography, Abdominal / Q000379:methods; D013902:Radiography, Thoracic / Q000379:methods; D011871:Radiology; D011874:Radiometry / Q000592:standards; D014057:Tomography, X-Ray Computed / Q000009:adverse effects*
chemical_list: D003287:Contrast Media