What is Grid selection in radiography.
The grid selection is manly depends upon the use of Kvp in radiology. Mostly 90 KVp used in diagnosis radiology so the grid selection is 8:1 grid ratio used. But if above the 90kvp used the selection of grid ratio is 12:1. The high grid ratio increase the patient radiation dose but improve the quality of x-ray film. So in diagnosis radiology manly used the grid ratio8:1.