Imaging Principle of Flat-Panel Detector C-arm Systems
Flat-panel detector C-arm (FPD C-arm) systems have become indispensable imaging equipment in modern operating rooms, widely used in orthopedics, trauma surgery, pain management, cardiovascular interventions, and more. Compared with traditional imaging systems, FPD C-arms provide higher image quality, faster imaging speed, and lower radiation dose. So how exactly does an FPD C-arm generate images? What is the underlying principle? This article offers a clear explanation. 1. What Is a Flat-Panel Detector C-arm? A flat-panel C-arm is a mobile medical imaging device that uses X-ray fluoroscopy to provide real-time dynamic images. Its most significant feature is the use of a flat-panel detector (FPD) instead of the traditional image intensifier (I.I.), greatly improving image clarity and stability. 2. How Does an FPD C-arm Form an Image? The imaging process involves four key steps: Step 1: X-ray Generation When the X-ray tube is energized, electrons accelerate from the cat...