Which grid configuration features a row of parallel lines?

The grid configuration that features a row of parallel lines is the parallel grid. This type of grid consists of multiple lead strips that run in one direction, and they are distinguished by their arrangement, which does not converge or have focal points like other types of grids.

Parallel grids are primarily used to reduce the amount of scatter radiation reaching the image receptor, enhancing the overall image quality by improving contrast. Since the lines are parallel, they provide a uniform approach to filtering scatter radiation across the entire imaging area.

In comparison, focused grids contain lead strips that are angled to converge at a specific focal point, optimizing performance at certain distances from the grid. Crosshatched grids consist of intersecting parallel lines, which create a more complex pattern that can improve scatter transmission even further but do not consist of a single row of parallel lines. Low ratio refers to the relationship between the height of the lead strips and the distance between them, which doesn't define the configuration in terms of line arrangement.

Recognizing these characteristics allows for a better understanding of how grids function and how they can be employed in radiographic practices to achieve the desired imaging results.