Final answer:
To improve spatial resolution of a CT image, a technologist can use thinner slices, increase the matrix size, reduce the field of view, adjust scanner settings for higher frequency sampling, and utilize advanced image analysis software.
Step-by-step explanation:
To increase the spatial resolution of a CT image, a technologist can make various changes to the imaging process. One key approach is to utilize thinner slices during scanning, which provides more detail by imaging smaller sections of the body or object. Another method involves increasing the matrix size of the image. By having more pixels in the same space, you can achieve a higher resolution image.
Additionally, reducing the field of view (FOV) allows for a greater concentration of pixels in a smaller area, effectively improving spatial resolution. The technologist can also adjust the scanner settings to use a higher sampling frequency, which helps to capture finer details in the image.
Importantly, the technologist must balance these changes with potential trade-offs, such as increased radiation dose or longer scan times. Moreover, advancements in image analysis software can also contribute to improved image quality, without necessarily changing the hardware components of the CT scanner.