eISSN: 2081-2841
ISSN: 1689-832X
Journal of Contemporary Brachytherapy
Current Issue Archive Supplements Articles in Press Journal Information Aims and Scope Editorial Office Editorial Board Register as Author Register as Reviewer Instructions for Authors Abstracting and indexing Subscription Advertising Information Links
Editorial System
Submit your Manuscript
SCImago Journal & Country Rank
Search
1/2020
vol. 12
 
Share:
Send email
Share:
abstract:
Case report

First experience of 192Ir source stuck event during high-dose-rate brachytherapy in Japan

Shinobu Kumagai
1
,
Norikazu Arai
1
,
Takeshi Takata
2
,
Daisuke Kon
1
,
Toshiya Saitoh
3
,
Hiroshi Oba
4
,
Shigeru Furui
4
,
Jun’ichi Kotoku
2
,
Kenshiro Shiraishi
4

  1. Central Radiology Division, Teikyo University Hospital, Tokyo, Japan
  2. Graduate School of Medical Care and Technology, Teikyo University, Tokyo, Japan
  3. Chiyoda Technol Corporation Co. Ltd., Japan
  4. Department of Radiology, Teikyo University School of Medicine, Tokyo, Japan
J Contemp Brachytherapy 2020; 12, 1: 53–60
DOI: https://doi.org/10.5114/jcb.2020.92401
Online publish date: 2020/02/28
View full text Get citation
 
Purpose
To share the experience of an iridium-192 (192Ir) source stuck event during high-dose-rate (HDR) brachytherapy for cervical cancer.

Material and methods
In 2014, we experienced the first source stuck event in Japan when treating cervical cancer with HDR brachytherapy. The cause of the event was a loose screw in the treatment device that interfered with the gear reeling the source. This event had minimal clinical effects on the patient and staff; however, after the event, we created a normal treatment process and an emergency process. In the emergency processes, each staff member is given an appropriate role. The dose rate distribution calculated by the new Monte Carlo simulation system was used as a reference to create the process.

Results
According to the calculated dose rate distribution, the dose rates inside the maze, near the treatment room door, and near the console room were  10-2 [cGy · h-1], 10-3 [cGy · h-1], and << 10-3 [cGy · h-1], respectively. Based on these findings, in the emergency process, the recorder was evacuated to the console room, and the rescuer waited inside the maze until the radiation source was recovered. This emergency response manual is currently a critical workflow once a year with vendors.

Conclusions
We reported our experience of the source stuck event. Details of the event and proposed emergency process will be helpful in managing a patient safety program for other HDR brachytherapy users.

keywords:

brachytherapy, medical event, Monte Carlo simulation

  
Termedia
About us Contact
Copyright notice Privacy policy Advertising policy Contact us
Quick links
Journals Books eBooks Events
© 2024 Termedia Sp. z o.o.
Developed by Bentus.