PT  - JOURNAL ARTICLE
AU  - Masahiro Katsurada
AU  - Takehiro Izumo
AU  - Yuichi Nagai
AU  - Christine Chavez
AU  - Mayumi Kitagawa
AU  - Jun Torii
AU  - Takumi Iwase
AU  - Tomohiko Aso
AU  - Takaaki Tsuchida
AU  - Shinji Sasada
TI  - The dose and risk factors for radiation exposure to medical staff during endobronchial ultrasonography with a guide sheath for peripheral pulmonary lesions under x-ray fluoroscopy
DP  - 2014 Sep 01
TA  - European Respiratory Journal
PG  - P682
VI  - 44
IP  - Suppl 58
4099  - http://erj.ersjournals.com/content/44/Suppl_58/P682.short
4100  - http://erj.ersjournals.com/content/44/Suppl_58/P682.full
SO  - Eur Respir J2014 Sep 01; 44
AB  - Introduction: Therapy for lung cancer has recently evolved to include molecular targeted therapy and adequate amounts of lung cancer tissue are needed to identify particular phenotypes. For this purpose, quite a number of investigations on diagnostic bronchoscopy have been undertaken. Corollary to the increasing number of transbronchial biopsies for peripheral pulmonary nodules is the increased chances of radiation exposure during fluoroscopy, but there are few study about radiation exposure dose during transbronchial biopsies.Aim and Objectives: Determine the dose and risk factors of radiation exposure to medical staff.Methods: Endobronchial ultrasonography with a guide sheath under X-ray fluoroscopy was performed on 132 cases of peripheral pulmonary lesions. The radiation exposure dose to medical staff (operator physicians, assistant physicians, nurses and radiological technologists) was measured.Results: The median radiation exposure dose to operator physicians was 12 microSv/exam (range 1–99), while that of the other medical staff was lower. In a multivariate analysis, patients' body mass index and the location of the radial ultrasound probe had significantly higher odds ratios.Conclusions: The risk factors for an increased radiation exposure dose were patients' BMI and the location of the radial ultrasound probe. But even then, the radiation exposure dose to medical staff during endobronchial ultrasonography with a guide sheath was very low, especially for nurses and radiological technologists in whom the exposure dose was negligible.