What is an advantage of electronic portal imaging over portal radiography?

Electronic portal imaging offers significant advantages over traditional portal radiography, one of which is improved image quality. This improvement is primarily due to the enhanced sensitivity and resolution of electronic detectors compared to film-based systems used in portal radiography. Electronic portal imaging systems enable real-time image acquisition, allowing for superior visualization of anatomical structures and better assessment of patient positioning and tumor localization.

In contrast to the older film techniques, electronic imaging also benefits from the ability to adjust exposure parameters dynamically and to apply post-processing techniques that enhance image clarity and detail. This capability supports more accurate treatment planning and verification, as clinicians have access to higher-quality images for decision-making.

The other aspects, such as the complexity of image acquisition or costs, typically do not contribute positively to the functionality of electronic portal imaging in the same way improved image quality does. Instead, electronic systems strive to streamline workflows and improve efficiency in a clinical setting.