Which grid error results in decreased density more on one side than the other?

The situation described involves decreased density more prominently on one side of the image. This phenomenon is characteristic of a grid error where the grid is positioned at an incorrect angle relative to the x-ray beam, which is known as being "off level." When the grid is off level, it does not properly align with the incoming x-ray rays; this misalignment can lead to a reduction in the amount of radiation that reaches the film or detector, especially more on one side than the other. As a result, the side of the image that receives less radiation will appear darker than the correctly exposed area, leading to an overall uneven density.

Grid-focus decentering, on the other hand, typically affects the uniformity of density but does not inherently cause the pronounced density drop on one specific side; it results in a loss of detail and density across the entire image. Cut-off refers to the reduction of exposure caused by grid misalignment, but it affects the image quality more uniformly rather than specifically impacting one side more than the other. Grid ratio pertains to the height of the lead strips compared to the distance between them, affecting the overall effectiveness of the grid but not causing the specific side effects associated with uneven density distribution.

Thus, the off-level grid error distinctly