Endoscopy 2018; 50(04): S161
DOI: 10.1055/s-0038-1637521
ESGE Days 2018 ePosters
Georg Thieme Verlag KG Stuttgart · New York

RADIATION DOSE IN MEDICAL STAFF DURING ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY (ERCP) USING OVER COUCH X-RAY TUBE

BK Son
1   Eulji University/Eulji Hospital, Internal Medicine, Seoul, Korea, Republic of
,
HC Jung
1   Eulji University/Eulji Hospital, Internal Medicine, Seoul, Korea, Republic of
,
D Oh
1   Eulji University/Eulji Hospital, Internal Medicine, Seoul, Korea, Republic of
› Author Affiliations
Further Information

Publication History

Publication Date:
27 March 2018 (online)

Also available at
 

Aims:

Reducing radiation exposure of medical personnel is an important issue during Endoscopic Retrograde Cholangiopancreatography (ERCP). This study was planned to investigate personnel's radiation doses obtained from ERCP with overcouch X-ray tube.

Methods:

We produced a 2 mmPb plate shield (width: 120 cm, height: 190 cm) with 0.5 mmPb window (width: 115 cm, height: 60 cm) on its upper part. This wheeled protective shield was placed between patient and practitioners while fluoroscopy was working. Thermoluminescent dosimeters (TLD) were placed at inside of window shield (at the level of neck; TLD1) and outside of window shield (at the level of neck; TLD2), neck (outside of thyroid shield; TLD3) of endoscopist, and chest (under the apron; TLD4 and TLD5) of endoscopist and a main assistant. Radiation doses were monitored quarterly.

Results:

128 consecutive therapeutic ERCP procedures were performed between October 2016 and Jun 2017. Mean fluoroscopy time and mean number of digital radiographs per procedure were 188 seconds and 3.7, respectively. The radiation doses of TLD1 and TLD2 at the neck level were 30.69 vs. 1.5 mSv, 25.89 vs. 0.25 mSv, and 23.96 vs. 0.22 mSv in every three quarter, respectively. Self-designed shield reduced the radiation exposure significantly (p < 0.001). There was no significant radiation doses’ difference between TLD2 and TLD3. Radiation doses in TLD3, TLD4 and TLD5 were all below 0.4 mSv showing no statistical differences among them.

Conclusions:

Radiation dose in the head and neck of endoscopist during ERCP exceeded 80 mSv only in three quaters. It suggested endoscopist may be exposed to significant values of radiation from ERCP without shield. Adequate radiation protective device like our protective shield should be needed to reduce radiation exposure especially when you use overcouch X-ray tube.