A grid is placed between the patient and the X-ray film to reduce scattered radiation (mainly due to the Compton effect) reaching the detector, thereby increasing image contrast. Grids are typically used where anatomy > 10 cm: Abdomen, skull, spine (except lateral cervical spine), contrast studies, IVU, RGU, MCU, barium studies (including lateral cervical spine); breast (mammography) : Use a 4:1 grid ratio. Grid Characteristics: The Bucky coefficient is the ratio of radiation to transmitted radiation on the grid, which indicates the increased patient dose due to the use of the grid, typically 2 to 6. The contrast improvement factor is the ratio between the contrast with and without the grid. Usually two. Image contrast can be improved by increasing the wire-to-grid ratio by increasing the height of the lead bars or reducing the gap. However, this results in increased X-ray tube loading and radiation exposure to the patient.
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Author：X Ray Grids Maker
Tel: +86 536-8882360
Company: Weifang Newheek Electronic Tech Co., Ltd.
Address: E Building of Future Star Scientific Innovation Industrial Zone of No.957 Wolong East Street, Yulong Community, Xincheng Sub-District Office, Weifang Hi-tech Zone, Shandong Province, China