Aims and objectives
The use of X-rays for medical purposes carries with it an inherent risk of exposing patient,
surgeons and supporting medical staff members to harmful ionizing radiation.
As the popularity and difficulty of X-ray guided interventional procedures are increasing,
so are the risks of overexposure to ionizing radiation for patients and staff.
Countless studies have shown that any amount of exposure increases the risk of radiation-induced tissue reactions (epilation,
skin necrosis,
cataracts…) and of stochastic effects such as cancers [1].
While a patient’s exposure can be...
Methods and materials
A radiation awareness demonstrator system has been implemented in an experimental interventional room at IHU Strasbourg,
containing a robotized X-ray imaging device.
It relies on multiple registered RGBD cameras mounted to the ceiling of the room,
along with radiation simulation and visualization approaches (described below),for providing real-time visual feedback about the current propagation of scattered radiation and the patient and attending personnel dose.
The views from the ceiling cameras are employed to perceive the current environment; this information is then applied by the system for...
Results
Demonstrations of our prototype radiation awareness system have been performed to our collaborating clinical and industrial partners.
Initial feedback has been positive since the system provides in-situ feedback about radiation exposure in an interventional room in an intuitive manner.
The potential of the system to be employed as a tool to teach about radiation's diffusion effects has also been acknowledged in the demonstrations.
Indeed,
using such a system would enable to teach trainees in real clinical conditions.
The provided visual feedback about radiation exposure can...
Conclusion
We have presented a system for improving radiation safety in the interventional room by making ionizing radiation visible.
The system has been positively received by our collaborating interventional radiologists since it provides a clear in-situ visualization of radiation.
The simulations have been validated experimentally using active personal dosimeters,
yielding a mean 18% difference between simulated and measured values.
The obtained results showed that the error between the simulated and measured dose values is in agreement with the intrinsic error of the dosimetric system we use....
Personal information
N.
Loy Rodas A.
Kadkhodamohammadi,
M.
de Mathelin and N.
Padoy are with ICube,
University of Strasbourg,
CNRS,
IHU Strasbourg,
Strasbourg,
France.
A.
Gangi is with the Department of Interventional Radiology,
University Hospital of Strasbourg,
Strasbourg,
France.
Corresponding author: Nicolas Loy Rodas (e-mail:
[email protected]).
Acknowledgments
This work was supported by French state fundsmanagedby the ANR within the Investissementsd'Avenir program under references ANR-11-LABX-0004 (Labex CAMI),
ANR-10-IDEX-0002-02 (IdEx Unistra),
ANR-10-IAHU-02 (IHU Strasbourg) and ANR-11-INBS-0006 (FLI).
References
[1] Roguin A et al.
2013.
Brain and Neck Tumors Among Physicians Performing Interventional Procedures.
The American Journal of Cardiology,
111(9),
1368-1372.
[2] Kirkwood ML et al.
2014.
Radiation-induced skin injury after complex endovascular procedures.
Journal of Vascular Surgery,
60(3),
742-748.
[3] Katz A et al.
2017.
Minimizing Ionizing Radiation Exposure in Invasive Cardiology Safety Training for Medical Doctors.
Journal of Nuclear Engineering and Radiation Science,
3(3).
[4] Loy Rodas N.,
Padoy N.,
2015.
Seeing is believing: increasing intraoperative awareness to scattered radiation in interventional...