title: [Measurement of effective dose of the assisting person in diagnostic X-ray examination].
abstract: We measured the effective dose received by the person assisting the patient at diagnostic X-ray examination. Measurement was done when a patient's chest, abdomen, lumbar vertebrae, hip joint, skull, cervical vertebrae, or knee joint was examined by radiography. A body phantom including human bones exposed to radiation was used in the role of the patient. Some exposure conditions for these measurements were the same as those used routinely in computed radiography. Effective dose was measured directly with an ionization survey meter. As a result, the effective dose of the person assisting with axial projection of the hip joint was 124 microSv, which was higher than that for other regions and projections. If the assisting person helped a patient without using any protective device, the effective dose would be low enough to ignore. However, because medical staff are frequently exposed to radiation, optimal protection is crucial to prevent unnecessary radiation.
authors.affiliation: Department of Radiology, Yamaguchi University Hospital.
authors.forename: Keiko
authors.initials: K
authors.lastname: Nakamura
authors.forename: Ryoko
authors.initials: R
authors.lastname: Ide
authors.forename: Akiyo
authors.initials: A
authors.lastname: Shimizu
authors.forename: Taizo
authors.initials: T
authors.lastname: Sanada
mesh_terms: D006621:Hip Joint / Q000528:radiation effects; D006801:Humans; D008159:Lumbar Vertebrae / Q000528:radiation effects; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011859:Radiography; D011860:Radiography, Abdominal; D013902:Radiography, Thoracic; D012886:Skull / Q000528:radiation effects; D013679:Technology, Radiologic