Radiologic Technologist Practice Exam

Which of the following is NOT a part of the process of image acquisition in computed radiography?

1. Photostimulable phosphor

2. Image processing

3. Digital storage

4. Film exposure

The correct answer is: Film exposure

In computed radiography (CR), the process of image acquisition involves several key components that work together to capture and process images. Photostimulable phosphor is crucial as it is used to capture the x-ray image, storing the energy from the radiation exposure. Once the image is captured, image processing is necessary to convert the latent image into a visible digital format that can be viewed and interpreted. Digital storage then allows for the archiving and retrieval of these images for future use or analysis. Film exposure, however, is not part of the image acquisition process in computed radiography. Unlike traditional film-based radiography, where direct exposure to x-ray film is necessary, computed radiography involves the use of a digital plate that interacts with x-rays differently. Thus, film exposure does not play a role in CR, making it the correct response to the question.