Material and quality control is time intensive and costly. Meticulous inspection of source material throughout the assembly process must be performed to make a product worthy for radiographic use. High-quality grid manufacturers inspect each roll for variables such as lead thickness, purity (absence of pollutants such as grease), and surface conditions (eg, pinholes, dents, ridges).Īluminum source material must similarly be congruously free of defects. Poor quality lead or inconsistent lead thickness can create film density differences, grid artifacts, or other imaging anomalies. The quality of the lead foil, cut from large rolls, is critical for effective scatter cleanup. To create a high-quality grid, the raw materials must be of superior quality and handled in such a way as to prevent damage during the assembly process. fiber material but the quality of the components used by manufacturers. There are positives and negatives to both types of grids. Both grids are interspaced with scatter-absorbing lead strips. There are two types of antiscatter grids: aluminum-interspaced, aluminum-covered grids and fiber-interspaced, carbon-covered grids. Generally, grid use is recommended when the anatomy to be x-rayed exceeds 12 cm in thickness or if exposure settings exceed 70 kVp. The primary function of antiscatter grids is to absorb scatter radiation emitted by body tissues before reaching the film/IP plate in order to increase image contrast and detail. This article seeks to clarify how antiscatter grid composition, assembly, and manufacturers’ quality systems should be key considerations when selecting x-ray grid suppliers. That decision can negatively affect patient care and diagnosis. As economic pressures continue putting a financial strain on radiology department operating budgets, it can be easy to neglect the importance of grid quality when making purchasing decisions. However, few medical professionals actually consider quality when selecting an x-ray grid supplier for their departments. They play a critical role in the imaging chain. Antiscatter x-ray grids are unsung heroes of radiography.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |