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Updated: Dec 27, 2025

X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
Multicentre prospective observational study protocol for radiation exposure from gastrointestinal fluoroscopic
Tsutomu Nishida1, Shiro Hayashi2,3, Mamoru Takenaka4
1Department of Gastroenterology, Toyonaka Municipal Hospital, Toyonaka, Osaka, Japan tnishida.gastro@gmail.com.
This study aims to establish radiation exposure (RE) reference levels for gastrointestinal endoscopic procedures in Japan. By collecting actual RE data, it seeks to guide safe practices for minimally invasive interventions like ERCP and EUS.
Area of Science:
- Medical Imaging and Radiation Oncology
- Gastroenterology and Endoscopy
Background:
- Minimally invasive endoscopic procedures under X-ray fluoroscopic guidance are increasing.
- Concerns exist regarding high radiation exposure (RE) from these medical imaging interventions.
- Limited data and lack of established reference levels for RE in gastrointestinal endoscopy.
Purpose of the Study:
- To prospectively collect actual radiation exposure (RE) data from various gastrointestinal endoscopic procedures.
- To establish diagnostic reference levels (DRLs) for image-guided gastrointestinal endoscopic interventions in Japan.
Main Methods:
- Multicenter, prospective observational study.
- Data collection on total fluoroscopy time, dose-area product, and air-kerma for procedures including ERCP, interventional EUS, and enteral stenting.
- Nationwide data collection to identify influential factors on radiation exposure.
Main Results:
- This section is to be filled once the study results are available.
- The study is designed to provide guidance on DRLs based on collected RE data.
- Identification of factors influencing radiation exposure will be a key outcome.
Conclusions:
- Establishing DRLs is crucial for optimizing radiation safety in gastrointestinal endoscopy.
- This study will provide essential data to inform radiation protection strategies.
- Findings will support the safe and effective use of image-guided endoscopic interventions.
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