Purpose: To compare the radiation exposure in patients during Endoscopic retrograde cholangiopancreatography (ERCP) done by Endoscopists formally trained in judicious use of fluoroscopy versus ERCPs done by Endoscopists without such formal training. Research design: This is an observational study to compare radiation exposure in patients during ERCPs based on formal training. Procedures to be used: None Risks and potential benefits There are no risks associated with this study as it is a retrospective chart review. Potential benefits include the knowledge gained from this study which may be of help to patients in the future. Importance of knowledge that may reasonably be expected to result The knowledge gained from this study may be of help to provide new insights and develop newer guidelines for radiation use in the future.
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Radiation exposure as assessed by fluoroscopy time
Timeframe: at the time of ERCP
Radiation exposure as assessed by total emittance
Timeframe: at the time of ERCP