[An experience of the clinical study with angiography system using a Flat Panel Detector]

Area of Science:

• Medical Imaging
• Radiology
• Biomedical Engineering

Background:

• Digital Subtraction Angiography (DSA) is a crucial imaging technique.
• Traditional DSA systems utilize Image Intensifier-Charge-Coupled Device (I.I.-CCD) cameras.
• Advancements in detector technology offer potential improvements in DSA performance.

Purpose of the Study:

• To compare the image quality and physical characteristics of a new Flat Panel Detector (FPD) system with a conventional I.I.-CCD camera in clinical DSA.
• To evaluate the feasibility of replacing I.I.-CCD detectors with FPDs in DSA systems.

Main Methods:

• Clinical studies were conducted using a prototype DSA system equipped with both FPD and I.I.-CCD detectors.
• Physical characteristics, including Modulation Transfer Function (MTF) and Signal-to-Noise Ratio (SNR), were measured for both detectors.
• Medical doctors visually compared DSA images acquired with both detector types.

Main Results:

• The FPD demonstrated superior MTF and SNR performance compared to the I.I.-CCD camera.
• Clinical evaluation revealed that DSA images produced by the FPD were visually superior to those from the I.I.-CCD camera.
• The physical and clinical evaluations support the potential of FPDs in DSA.

Conclusions:

• Flat Panel Detectors (FPDs) offer significant advantages in image quality for Digital Subtraction Angiography (DSA) over Image Intensifier-Charge-Coupled Device (I.I.-CCD) cameras.
• FPDs represent a viable and promising technology for the future of DSA systems.
• The transition to FPDs in DSA systems is expected in the near future.