Which technique is commonly used to increase image resolution in mammography?

Using spot compression devices is an effective technique for increasing image resolution in mammography. Spot compression allows for a more focused application of pressure on specific areas of the breast, which helps to reduce motion blur and enhances the clarity of the image. This localized compression improves the visualization of subtle abnormalities by minimizing tissue overlap and providing better detail of the breast tissue in the area of interest.

By improving the resolution of the image, spot compression facilitates more accurate detection and diagnosis of potential issues, such as microcalcifications or small tumors that may be difficult to see with standard compression. The use of spot compression is particularly beneficial in situations where there is a need to examine a specific region of the breast more closely.

In contrast, the other techniques mentioned do not directly contribute to increased image resolution. For example, using a lower compression ratio could lead to poorer image quality by not adequately immobilizing the breast tissue. Reducing X-ray exposure could also compromise the quality of the image by decreasing the amount of detail captured. Increasing imaging speed may improve workflow but could result in lower resolution images if not carefully managed with respect to exposure and compression techniques.