Lots of interesting abstracts and cases were submitted for TCTAP 2025. Below are the accepted ones after a thorough review by our official reviewers. Don’t miss the opportunity to expand your knowledge and interact with authors as well as virtual participants by sharing your opinion in the comment section!
TCTAP A-095
Using a Simulating Phantom and Thermoluminescent Dosimeters to Evaluate Radiation Peak Skin Dose in the Percutaneous Coronary Intervention
By Kai-Chieh Hsu
Presenter
Kai-Chieh Hsu
Authors
Kai-Chieh Hsu1
Affiliation
New Taipei Municipal TuCheng Hospital, Taiwan1
View Study Report
TCTAP A-095
Digital Health and Artificial Intelligence
Using a Simulating Phantom and Thermoluminescent Dosimeters to Evaluate Radiation Peak Skin Dose in the Percutaneous Coronary Intervention
Kai-Chieh Hsu1
New Taipei Municipal TuCheng Hospital, Taiwan1
Background
Recently, the percutaneous coronary interventions (PCI) have increased the average procedural radiation dose. In the meantime, the number of radiation skin damage has increased. Thus, monitoring radiation dose is necessary. In clinical setting, dose-areaproduct (DAP) and air kerma (AK) are used to estimate patient peak skin dose (PSD). However, these data are calculated by using presumptive mathematic equation, which ignore each individual’s characters and different projectors angles. Our study aims to provide an easy method to record and estimate PSD with different tube angulation in PCI setting.
Methods
Thermoluminescent dosimeters (TLDs) were used to measure radiation dose of Hp (10) and Hp (0.07) of skin. We used cine mode with setting of 15 frames per second rate, recorded for 5 seconds and repeated for 5 times. We tested with standard tube angulations, such as posteroanterior view (PA), caudal 35-degree view (CAU 35), cranial 35-degree view (CRA 35), LAO 65-degree þ caudal 20-degree view (spider view), and left anterior oblique 50-degree view (LAO 50).
Results
The results showed the caudal 35-degree view had highest radiation dose in DAP, Hp (10) and Hp (0.07). When the zoom-in stage was used, DAP reduced however AK and peak skin dose increased.
Conclusion
Finally, we used values of skin dose of Hp (10) and Hp (0.07) compared to values of DAP in five groups, the value of PSD is about between 3% to 7% of DAP. By sharing these experiences, we provide an easy practicable method to estimate the PSD in the PCI for each catheterization lab.