Present Situation of Fluoroscopy Radiation Doses in Many IVR Systems

Inaba Yohei, Kobayashi Ryota, Chida Koichi

doi:10.6009/jjrt.2016_jsrt_72.8.689

Bibliographic Information

Other Title

多施設IVR 装置における実測に基づいた透視線量率の現状～DRLs 2015 との乖離～
タシセツ IVR ソウチニオケルジッソクニモトズイタトウシセンリョウリツノゲンジョウ : DRLs 2015 トノカイリ

Search this article

Description

<p>Japan Network for Research and Information on Medical Exposures (J-RIME) released the primary diagnostic reference levels (DRLs 2015) to optimize/manage the radiation dose for interventional radiology (IVR) on June 7, 2015 in Japan. However, this DRLs 2015 has a wide range of selection bias for only certified IVR technologists’ dates. Therefore, it is important to know the radiation dose including non-certified IVR technologists’ facilities. In this study, we verified the fluoroscopy radiation dose rates for many IVR systems in the present situation. This study was conducted at 13 cardiac catheterization laboratories (18 X-ray systems) around Sendai. We measured the entrance doses at the patient entrance reference point (interventional reference point) using a 20-cm-thick acrylic plate and skin-dose monitor. Although the DRLs 2015 of IVR is 20 mGy/min, the result of a fluoroscopy radiation dose in 18 X-ray systems was median (inter quartile range: IQR), 24.4 (16.3, 35.5) mGy/min. The optimization/managing the radiation dose of IVR X-ray systems is an important issue. In addition, it is necessary to intensify the activities to raise awareness for DRLs 2015.</p>

Journal

Japanese Journal of Radiological Technology

Japanese Journal of Radiological Technology 72 (8), 689-694, 2016

Japanese Society of Radiological Technology

Keywords

Details 詳細情報について

Export