Which of the following is a disadvantage of the image intensifier?

The chosen answer identifies a key limitation of the image intensifier system, where older technology can lead to edge distortion. This distortion occurs because the image intensifiers are not always able to perfectly align and capture the details at the periphery of the field of view, affecting the overall quality of the captured image. As imaging technology has evolved, this issue has been recognized as a drawback, particularly when high precision imaging is required, such as in interventional radiology procedures.

In contrast, high specificity in imaging and a high signal-to-noise ratio are generally advantages associated with modern imaging technologies, helping to improve the clarity and reliability of the images captured. Additionally, contemporary image intensifiers often produce lower radiation exposure compared to earlier fluoroscopy methods, representing a move towards safer practices in imaging without compromising on the quality of the clinical evaluation. Thus, edge distortion arising from older image intensifier systems is indeed a relevant drawback that can impact the effectiveness of interventional radiological procedures.