What types of artifacts can arise from the proper use of a grid?

When utilizing a grid in radiographic imaging, various artifacts can arise depending on the grid's characteristics and usage. The use of a grid is primarily to improve image quality by reducing scatter radiation, which can lead to a clearer image. However, when a grid is used incorrectly or if it has defects, specific artifacts will manifest.

Gridlines can appear on the radiograph when stationary grids are used, particularly if the exposure time is prolonged or if there is a mismatch between the grid and the imaging receptor. This can create distinctive lines corresponding to the lead strips within the grid.

Additionally, if the grid is damaged or improperly aligned, such as being tilted or not properly centered over the area being imaged, this can result in broken grids or misaligned exposures, which may also cause visible artifacts on the image. The lead strips within the grid that are meant to absorb scatter can become misaligned, leading to areas of increased exposure known as "smushed" lead strips, where the appearance of the grid impacts the overall image quality.

Therefore, the correct answer encompasses both gridlines appearing due to the use of stationary grids and various forms of grid damage, including broken grids and artifacts resulting from lead strips that do not function as intended. It captures the full scope