About Photon-Counting CT
Photon-counting CT (PCCT) is an emerging medical technology that can improve image quality with less radiation exposure. PCCT uses a semiconductor material to directly convert each incident photon into an electrical signal, providing a clearer image.
Potential Impact
PCCT is intended to function like conventional CT, scanning various anatomical structures for the purpose of screening, diagnosing, and monitoring health conditions. It requires less time to complete a scan, which could increase the number of CT scans a health care organization can conduct per day.
PCCT may offer particular benefits to children, people who require frequent CT scans, and people living with overweight or obesity. However, it remains unclear whether the higher resolution and lower radiation doses result in downstream improvements in key health outcomes.
Challenges and Limitations
PCCT scanners cost 3 to 5 times more than conventional CT scanners. Additional clinical trials are needed to investigate whether the higher resolution and lower radiation doses result in improvements in key health outcomes.
Manual:
Download: Photon-Counting CT: High Resolution; Less Radiation CADTH Horizon Scan
Chat: Powered By VoiceSphere