Radiation Exposure to Patients
during Interventional Radiologic Procedures : Evaluation for
Neuroembolization, Percutaneous Coronary Intervention, and Implantation
of Infuser Port
Department of Radiology, Teikyo University
School of Medicine
Shigeru Suzuki, Shigeru Furui
Department of Environmental Health, National Institute of
Department of Radiology, Fukuoka University School of Medicine
Department of Radiology, Osaka University Faculty of Medicine
Department of Radiology, Kohka Public Hospital
Department of Radiology, Aichi Medical University
Department of Medicine, Teikyo University School of Medicine
Department of Radiology, Toranomon Hospital
Department of Radiological Technology, Saitama Cancer Center
Department of Radiology, Teikyo University Hospital
Department of Radiology, Osaka University Hospital
Department of Radiology, Fukuoka University Hospital
Purpose : We evaluated radiation exposure to the skin of
patients undergoing three kinds of interventional radiology procedures.
Material and Methods : Skin doses were assessed for 36 patients
(12 neuroembolizations, 11 percutaneous coronary interventions[PCI],
and 13 implantations of infuser port) at four institutes. Entrance
skin doses were evaluated with 3 packs of thermoluminescent dosimeters
in each patient. The measurement points were forehead, right
temporal surface, and occipital surface in neuroembolization,
and inferior angle of the left scapula, its median, and its lateral
aspect in PCI. In implantation of infuser port, thermoluminescent
dosimeters were placed behind the left clavicle, Th12-L1, and
right lobe of the liver.
Result : Maximum skin dose was 512 ± 330cGy (range, 110-1217cGy)
in neuroembolization, 201±244cGy(range, 28-781cGy) in PCI, and,
649±753cGy (range, 35-2405cGy) in implantation of infuser port.
The maximum skin doses exceeded 1 Gy in 4 of all the 36 procedures.
Conclusions : Skin injury can be induced in these procedures.
Therefore it is important for physicians to estimate exposure
dose in individual cases and make efforts to reduce the exposure