Using a SPOT ROI Function to Minimize Radiation During Chronic Total Occlusion Percutaneous Coronary Interventions
Masataka Yoshinaga1, Takashi Muramatsu2, Yuto Kondo3
1Department of Cardiology, Fujita Health University Bantane Hospital, Aichi, Japan.
JACC. Case Reports
|May 30, 2025
Summary
This study demonstrates using the SPOT region of interest (ROI) function during complex percutaneous coronary intervention to significantly reduce radiation exposure. This technique successfully navigated a chronic total occlusion lesion while minimizing dose.
Area of Science:
- Cardiology
- Medical Imaging Technology
Background:
- Complex percutaneous coronary interventions (PCI) for chronic total occlusions (CTO) often require prolonged fluoroscopy times, leading to substantial radiation exposure for patients and staff.
- Minimizing radiation dose during interventional procedures is a critical aspect of patient safety and radiation protection.
Observation:
- A novel approach utilizing the SPOT region of interest (ROI) function on the Alphenix Evolve Edition X-ray system was employed for a complex PCI case involving a 60-mm CTO lesion.
- Fluoroscopy was exclusively guided by SPOT ROI from the initial engagement of the guiding catheter.
- Successful navigation of the CTO lesion was achieved using the SPOT ROI function.
Findings:
- Despite a lengthy fluoroscopy time of 71 minutes, the total radiation dose administered was remarkably low, measuring 990 mGy (<1 Gy).
- The SPOT ROI function, exclusive to the Alphenix Evolve Edition system, facilitated this dose reduction.
Implications:
- This case illustrates the potential of the SPOT ROI function to significantly reduce radiation doses during complex PCI procedures.
- The findings suggest that this technology can be a valuable tool for enhancing safety in interventional cardiology by optimizing radiation management.
