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Updated: Jun 16, 2025
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
Real time eye dose reduction in fluoroscopy with auditory and visual feedback dosimeter through swine model
Muhammad Umair Ahmad Khan1, Byung Ju Yi2
1Department of Biomedical Engineering, University of Engineering and Technology (UET) Lahore (Narowal) Campus, Narowal, 51600, Pakistan.
Abstract:
This paper proposes measurement and reduction of eye dose in real time for the physician and the assistant performing fluoroscopy guided arterial puncture. Eye dose rates were measured for 30 fluoroscopy-guided punctures of bilateral femoral arteries in pigs. Fifteen fluoroscopy-guided punctures were performed using real time radiation dosimeter without auditory and visual feedback and other fifteen punctures were done using real time radiation dosimeter with visual and auditory feedback worn on forehead by an interventional cardiologist having experience of more than 10 years. The mean radiation dose rate for eyes of physician during arterial puncturing with real time radiation dosimeter with auditory feedback was 0.07 mSv/h (n = 15) whereas it was 0.18 mSv/h (n = 15) without visual and auditory feedback. The percentage of reduction with the device was 61% for eyes. In case of assistant the reduction was 33% for eyes (n = 15). The real time visual and auditory feedback dosimeter has reduced the eye dose rate of the physician and assistant and also helped him staying away from the X-ray source. Real time radiation dosimeters can be an effective tool to measure and reduce the dose to the eyes. The radiation eye dose rate for physician and assistant was significantly reduced by using real time radiation dosimeter with visual and auditory feedback. The real time radiation dosimeter not only helps in measuring but also help in minimizing the radiation dose rate for the physician and assistant in real time.
Insights
A real-time radiation dosimeter with visual and auditory feedback significantly reduced eye radiation dose by 61% for physicians and 33% for assistants during fluoroscopy-guided arterial punctures.
Area of Science:
- Medical Physics
- Interventional Cardiology
- Radiation Safety
Background:
- Fluoroscopy-guided arterial punctures pose radiation risks to physicians and assistants.
- Ocular radiation exposure is a significant concern in interventional procedures.
- Effective real-time monitoring and dose reduction strategies are needed.
Purpose of the Study:
- To measure and reduce real-time eye radiation dose for medical staff during fluoroscopy-guided arterial punctures.
- To evaluate the efficacy of a real-time radiation dosimeter with auditory and visual feedback.
Main Methods:
- Eye dose rates were measured in pigs during 30 fluoroscopy-guided femoral artery punctures.
- Procedures were divided into two groups: with and without real-time dosimeter feedback.
- The dosimeter was worn on the forehead by an experienced interventional cardiologist.
Main Results:
- Physicians' mean eye dose rate decreased from 0.18 mSv/h to 0.07 mSv/h (61% reduction) with the feedback dosimeter.
- Assistants' mean eye dose rate showed a 33% reduction.
- The device facilitated staff positioning away from the X-ray source.
Conclusions:
- Real-time radiation dosimeters with visual and auditory feedback are effective in measuring and minimizing ocular radiation dose.
- This technology enhances radiation safety for interventional cardiologists and their assistants.
- Implementing real-time feedback systems can significantly improve radiation protection during fluoroscopic procedures.
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