What is the main benefit of using a long exposure time technique with low milliampere settings?

The main benefit of using a long exposure time technique with low milliampere settings is that it can lead to improved image contrast. This technique allows for more precise control over the amount of x-ray exposure to the imaging sensor. By using a prolonged exposure time while keeping the milliampere settings low, the overall quantity of radiation administered is reduced.

As a result, the image tends to exhibit better contrast because the low milliampere settings decrease the amount of scatter radiation and noise that can degrade the quality of the image. When the contrast is improved, it becomes easier to differentiate between various tissues and structures within the image.

While other benefits such as lower patient dose and reduced motion blurring may also occur with certain techniques, the specific advantage in this context is the enhancement of image contrast. Better resolution might improve the sharpness of the image but is not necessarily a direct result of long exposure times coupled with low milliampere settings.